伏見 清秀 ふしみ きよひで 先生

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori, Hideo Yasunaga, Hiroaki Miyata. Quantitative assessment of the advantages of laparoscopic gastrectomy and the impact of volume-related hospital characteristics on resource use and outcomes of gastrectomy patients in Japan. Ann. Surg. 2011.01; 253 (1): 64-70.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Community-based appraisal of laparoscopic abdominal surgery in Japan. J. Surg. Res. 2011.01; 165 (1): e1-13.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Reconsidering the value of rehabilitation for patients with cerebrovascular disease in Japanese acute health care hospitals. Value Health. 2011.01; 14 (1): 166-176.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. Impact of timing of bile duct interventions on resource use and clinical outcome of cholecystectomy patients in Japan. J Eval Clin Pract. 2010.08; 16 (4): 802-810.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Probability of survival, early critical care process, and resource use in trauma patients. Am J Emerg Med. 2010.07; 28 (6): 673-681.

Kazuaki Kuwabara, Shinya Matsuda, Makoto Anan, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. Difference in resource utilization between patients with acute and chronic heart failure from Japanese administrative database. Int. J. Cardiol.. 2010.06; 141 (3): 254-259.

Hiroaki Miyata, Hideki Hashimoto, Hiromasa Horiguchi, Kiyohide Fushimi, Shinya Matsuda. Assessment of hospital performance with a case-mix standardized mortality model using an existing administrative database in Japan. BMC Health Serv Res. 2010.05; 10 130.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Variations in the preoperative resources use and the practice pattern in Japanese cholecystectomy patients. Surg. Today. 2010.04; 40 (4): 334-346.

Kazuaki Kuwabara, Shinya Matsuda, Yuichi Imanaka, Kiyohide Fushimi, Hideki Hashimoto, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori, Shunya Ikeda, Hideo Yasunaga. Injury severity score, resource use, and outcome for trauma patients within a Japanese administrative database. J Trauma. 2010.02; 68 (2): 463-470.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. Contribution of bile duct drainage on resource use and clinical outcome of open or laparoscopic cholecystectomy in Japan. J Eval Clin Pract. 2010.02; 16 (1): 31-38.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Quantitative comparison of the difficulty of performing laparoscopic colectomy at different tumor locations. World J Surg. 2010.01; 34 (1): 133-139.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Hospital volume and quality of laparoscopic gastrectomy in Japan. Dig Surg. 2009.12; 26 (5): 422-429.

Hiroyo Kuwabara, Kiyohide Fushimi. The impact of a new payment system with case-mix measurement on hospital practices for breast cancer patients in Japan. Health Policy. 2009.09; 92 (1): 65-72.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Impact of hospital case volume on the quality of laparoscopic colectomy in Japan. J. Gastrointest. Surg.. 2009.09; 13 (9): 1619-1626.

Kaname Yamamoto, Kiyohide Fushimi. Travel of patients to distant hospitals for elective surgery in Japan: a cross-sectional analysis of a nationally representative sample. Surg. Today. 2009.09; 39 (9): 758-763.

Kenshi Hayashida, Yuichi Imanaka, Tetsuya Otsubo, Kazuaki Kuwabara, Kohicih B Ishikawa, Kiyohide Fushimi, Hideki Hashimoto, Hideo Yasunaga, Hiromasa Horiguchi, Makoto Anan, Kenji Fujimori, Shunya Ikeda, Shinya Matsuda. Development and analysis of a nationwide cost database of acute-care hospitals in Japan. J Eval Clin Pract. 2009.08; 15 (4): 626-633.

Emi Sato, Kiyohide Fushimi. What has influenced patient health-care expenditures in Japan?: variables of age, death, length of stay, and medical care. Health Econ. 2009.07; 18 (7): 843-853.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori, Kenshi Hayashida. Impact of timing of cholecystectomy and bile duct interventions on quality of cholecystitis care. Int J Surg. 2009.06; 7 (3): 243-249.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Makoto Anan, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. Differences in practice patterns and costs between small cell and non-small cell lung cancer patients in Japan. Tohoku J. Exp. Med.. 2009.01; 217 (1): 29-35.

Toshiro Kamata, Kiyohide Fushimi. Prevalence of prostate cancer in end-stage renal disease patients. Urol. Int.. 2008.06; 80 (4): 419-424.

Kazuaki Kuwabara, Yuichi Imanaka, Shinya Matsuda, Kiyohide Fushimi, Hideki Hashimoto, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. The association of the number of comorbidities and complications with length of stay, hospital mortality and LOS high outlier, based on administrative data. Environ Health Prev Med. 2008.05; 13 (3): 130-137.

K Kuwabara, Y Imanaka, S Matsuda, K Fushimi, H Hashimoto, K B Ishikawa, H Horiguchi, K Hayashida, K Fujimor. Cost of open versus laparoscopic appendectomy. Clin Ter. 2008.05; 159 (3): 155-163.

Kazuaki Kuwabara, Yuichi Imanaka, Shinya Matsuda, Kiyohide Fushimi, Hideki Hashimoto, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. Impact of age and procedure on resource use for patients with ischemic heart disease. Health Policy. 2008.02; 85 (2): 196-206.

Kazuaki Kuwabara, Shinya Matsuda, Yuichi Imanaka, Kiyohide Fushimi, Hideki Hashimoto, Koichi Ishikawa. The effect of age and procedure on resource use for patients with cerebrovascular disease. J Health Serv Res Policy. 2008.01; 13 (1): 26-32.

Vijaya Sundararajan, Hude Quan, Patricia Halfon, Kiyohide Fushimi, Jean-Christophe Luthi, Bernard Burnand, William A Ghali. Cross-national comparative performance of three versions of the ICD-10 Charlson index. Med Care. 2007.12; 45 (12): 1210-1215.

Kiyohide Fushimi, Hideki Hashimoto, Yuichi Imanaka, Kazuaki Kuwabara, Hiromasa Horiguchi, Kohichi B Ishikawa, Shinya Matsuda. Functional mapping of hospitals by diagnosis-dominant case-mix analysis. BMC Health Serv Res. 2007.04; 7 50.

Noritoshi Yoshii, Kiyohide Fushimi. Factors influencing the selection of a hospital for colon cancer surgery in Japan: analysis of the effects of surgery volume, hospital functions, and geographic conditions. J. Med. Dent. Sci.. 2006.12; 53 (4): 167-174.

Kazuaki Kuwabara, Yuichi Imanaka, Shinya Matsuda, Kiyohide Fushimi, Hideki Hashimoto, Koichi B Ishikawa, Hiromasa Horiguchi. Profiling of resource use variation among six diseases treated at 82 Japanese special functioning hospitals, based on administrative data. Health Policy. 2006.10; 78 (2-3): 306-318.

Hiroyuki Shiotsuki, Yoichi Ogushi, Kiyohide Fushimi, Shotai Kobayashi. Evaluation of applied cases of thrombolytic therapy against ultra-acute ischemic stroke. Using the Japanese Standard Stroke Registry Database. Tokai J. Exp. Clin. Med.. 2005.04; 30 (1): 49-62.

S Nakai, K Iseki, K Tabei, K Kubo, I Masakane, K Fushimi, K Kikuchi, T Shinzato, T Sanaka, T Akiba. Outcomes of hemodiafiltration based on Japanese dialysis patient registry. Am. J. Kidney Dis.. 2001.10; 38 (4 Suppl 1): S212-S216.

Y Yamashita, K Hirai, Y Katayama, K Fushimi, S Sasaki, F Marumo. Mutations in sixth transmembrane domain of AQP2 inhibit its translocation induced by vasopression. Am. J. Physiol. Renal Physiol.. 2000.03; 278 (3): F395-F405.

I Shinbo, K Fushimi, M Kasahara, K Yamauchi, S Sasaki, F Marumo. Functional analysis of aquaporin-2 mutants associated with nephrogenic diabetes insipidus by yeast expression. Am. J. Physiol.. 1999.11; 277 (5 Pt 2): F734-F741.

T Saito, S Ishikawa, S Sasaki, M Higashiyama, S Nagasaka, N Fujita, K Fushimi, F Marumo. Lack of vasopressin-independent upregulation of AQP-2 gene expression in homozygous Brattleboro rats. Am. J. Physiol.. 1999.08; 277 (2 Pt 2): R427-R433.

K Yamauchi, K Fushimi, Y Yamashita, I Shinbo, S Sasaki, F Marumo. Effects of missense mutations on rat aquaporin-2 in LLC-PK1 porcine kidney cells. Kidney Int.. 1999.07; 56 (1): 164-171.

T Akiba, T Ota, K Fushimi, H Shimamura, H Tamura, S Sasaki, F Marumo. Water channel AQP-1 in the primary cell culture of rat peritoneum. Adv Perit Dial. 1999.01; 15 3-6.

M Tanaka, N Inase, K Fushimi, K Ishibashi, M Ichioka, S Sasaki, F Marumo. Induction of aquaporin 3 by corticosteroid in a human airway epithelial cell line. Am. J. Physiol.. 1997.11; 273 (5 Pt 1): L1090-L1095.

K Fushimi, S Sasaki, F Marumo. Phosphorylation of serine 256 is required for cAMP-dependent regulatory exocytosis of the aquaporin-2 water channel. J. Biol. Chem.. 1997.06; 272 (23): 14800-14804.

K Fushimi, L Bai, F Marumo, S Sasaki. Isolation of a gene encoding nodulin-like intrinsic protein of Escherichia coli. Biochem. Mol. Biol. Int.. 1997.04; 41 (5): 995-1003.

S Sasaki, S Uchida, M Kuwahara, K Fushimi, F Marumo. Aquaporins and ion conductance. Science. 1997.03; 275 (5305): 1490-1491.

T Saito, S E Ishikawa, S Sasaki, N Fujita, K Fushimi, K Okada, K Takeuchi, A Sakamoto, S Ookawara, T Kaneko, F Marumo, T Saito. Alteration in water channel AQP-2 by removal of AVP stimulation in collecting duct cells of dehydrated rats. Am. J. Physiol.. 1997.02; 272 (2 Pt 2): F183-F191.

K Ishibashi, S Sasaki, K Fushimi, T Yamamoto, M Kuwahara, F Marumo. Immunolocalization and effect of dehydration on AQP3, a basolateral water channel of kidney collecting ducts. Am. J. Physiol.. 1997.02; 272 (2 Pt 2): F235-F241.

T Yamamoto, S Sasaki, K Fushimi, K Ishibashi, E Yaoita, K Kawasaki, H Fujinaka, F Marumo, I Kihara. Expression of AQP family in rat kidneys during development and maturation. Am. J. Physiol.. 1997.02; 272 (2 Pt 2): F198-F204.

T Akiba, T Ota, K Fushimi, H Tamura, T Hata, S Sasaki, F Marumo. Water channel AQP1, 3, and 4 in the human peritoneum and peritoneal dialysate. Adv Perit Dial. 1997; 13 3-6.

L Bai, K Fushimi, S Sasaki, F Marumo. Structure of aquaporin-2 vasopressin water channel. J. Biol. Chem.. 1996.03; 271 (9): 5171-5176.

M Hayashi, S Sasaki, H Tsuganezawa, T Monkawa, W Kitajima, K Konishi, K Fushimi, F Marumo, T Saruta. Role of vasopressin V2 receptor in acute regulation of aquaporin-2. Kidney Blood Press. Res.. 1996; 19 (1): 32-37.

N Fujita, S E Ishikawa, S Sasaki, G Fujisawa, K Fushimi, F Marumo, T Saito. Role of water channel AQP-CD in water retention in SIADH and cirrhotic rats. Am. J. Physiol.. 1995.12; 269 (6 Pt 2): F926-F931.

S Sasaki, K Fushimi, K Ishibashi, F Marumo. Water channels in the kidney collecting duct. Kidney Int.. 1995.10; 48 (4): 1082-1087.

K Fushimi, F Marumo. Water channels. Curr. Opin. Nephrol. Hypertens.. 1995.09; 4 (5): 392-397.

N Inase, K Fushimi, K Ishibashi, S Uchida, M Ichioka, S Sasaki, F Marumo. Isolation of human aquaporin 3 gene. J. Biol. Chem.. 1995.07; 270 (30): 17913-17916.

K Kanno, S Sasaki, Y Hirata, S Ishikawa, K Fushimi, S Nakanishi, D G Bichet, F Marumo. Urinary excretion of aquaporin-2 in patients with diabetes insipidus. N. Engl. J. Med.. 1995.06; 332 (23): 1540-1545.

T Yamamoto, S Sasaki, K Fushimi, K Ishibashi, E Yaoita, K Kawasaki, F Marumo, I Kihara. Vasopressin increases AQP-CD water channel in apical membrane of collecting duct cells in Brattleboro rats. Am. J. Physiol.. 1995.06; 268 (6 Pt 1): C1546-C1551.

T Yamamoto, S Sasaki, K Fushimi, K Kawasaki, E Yaoita, K Oota, Y Hirata, F Marumo, I Kihara. Localization and expression of a collecting duct water channel, aquaporin, in hydrated and dehydrated rats. Exp. Nephrol.. 1995.05; 3 (3): 193-201.

M Kuwahara, K Fushimi, Y Terada, L Bai, F Marumo, S Sasaki. cAMP-dependent phosphorylation stimulates water permeability of aquaporin-collecting duct water channel protein expressed in Xenopus oocytes. J. Biol. Chem.. 1995.05; 270 (18): 10384-10387.

Y Asahina, N Izumi, N Enomoto, S Sasaki, K Fushimi, F Marumo, C Sato. Increased gene expression of water channel in cirrhotic rat kidneys. Hepatology. 1995.01; 21 (1): 169-173.

F Saito, S Sasaki, A B Chepelinsky, K Fushimi, F Marumo, T Ikeuchi. Human AQP2 and MIP genes, two members of the MIP family, map within chromosome band 12q13 on the basis of two-color FISH. Cytogenet. Cell Genet.. 1995; 68 (1-2): 45-48.

M Hayashi, S Sasaki, H Tsuganezawa, T Monkawa, W Kitajima, K Konishi, K Fushimi, F Marumo, T Saruta. Expression and distribution of aquaporin of collecting duct are regulated by vasopressin V2 receptor in rat kidney. J. Clin. Invest.. 1994.11; 94 (5): 1778-1783.

K Fushimi, S Sasaki, T Yamamoto, M Hayashi, T Furukawa, S Uchida, M Kuwahara, K Ishibashi, M Kawasaki, I Kihara. Functional characterization and cell immunolocalization of AQP-CD water channel in kidney collecting duct. Am. J. Physiol.. 1994.10; 267 (4 Pt 2): F573-F582.

S Sasaki, K Fushimi, F Marumo. The apical membrane water channel of collecting ducts. Exp. Nephrol.. 1994.09; 2 (5): 269-272.

S Uchida, S Sasaki, K Fushimi, F Marumo. Isolation of human aquaporin-CD gene. J. Biol. Chem.. 1994.09; 269 (38): 23451-23455.

K Ishibashi, S Sasaki, K Fushimi, S Uchida, M Kuwahara, H Saito, T Furukawa, K Nakajima, Y Yamaguchi, T Gojobori. Molecular cloning and expression of a member of the aquaporin family with permeability to glycerol and urea in addition to water expressed at the basolateral membrane of kidney collecting duct cells. Proc. Natl. Acad. Sci. U.S.A.. 1994.07; 91 (14): 6269-6273.

S Sasaki, K Fushimi, H Saito, F Saito, S Uchida, K Ishibashi, M Kuwahara, T Ikeuchi, K Inui, K Nakajima. Cloning, characterization, and chromosomal mapping of human aquaporin of collecting duct. J. Clin. Invest.. 1994.03; 93 (3): 1250-1256.

K Fushimi, S Uchida, Y Hara, Y Hirata, F Marumo, S Sasaki. Cloning and expression of apical membrane water channel of rat kidney collecting tubule. Nature. 1993.02; 361 (6412): 549-552.

N Periasamy, H P Kao, K Fushimi, A S Verkman. Organic osmolytes increase cytoplasmic viscosity in kidney cells. Am. J. Physiol.. 1992.10; 263 (4 Pt 1): C901-C907.

H Sakamoto, S Sasaki, Y Nakamura, K Fushimi, F Marumo. Regulation of endothelin-1 production in cultured rat mesangial cells. Kidney Int.. 1992.02; 41 (2): 350-355.

L B Shi, K Fushimi, A S Verkman. Solvent drag measurement of transcellular and basolateral membrane NaCl reflection coefficient in kidney proximal tubule. J. Gen. Physiol.. 1991.08; 98 (2): 379-398.

A S Verkman, L B Shi, H R Bae, K Fushimi. Transport mechanisms in kidney proximal tubule examined using chloride-sensitive fluorescent indicators. Kidney Int. Suppl.. 1991.07; 33 S103-S108.

L B Shi, K Fushimi, H R Bae, A S Verkman. Heterogeneity in ATP-dependent acidification in endocytic vesicles from kidney proximal tubule. Measurement of pH in individual endocytic vesicles in a cell-free system. Biophys. J.. 1991.06; 59 (6): 1208-1217.

A S Verkman, M Armijo, K Fushimi. Construction and evaluation of a frequency-domain epifluorescence microscope for lifetime and anisotropy decay measurements in subcellular domains. Biophys. Chem.. 1991.04; 40 (1): 117-125.

K Fushimi, A S Verkman. Low viscosity in the aqueous domain of cell cytoplasm measured by picosecond polarization microfluorimetry. J. Cell Biol.. 1991.02; 112 (4): 719-725.

K Fushimi, A S Verkman. Relationship between vasopressin-sensitive water transport and plasma membrane fluidity in kidney collecting tubule. Am. J. Physiol.. 1991.01; 260 (1 Pt 1): C1-C8.

K Fushimi, J A Dix, A S Verkman. Cell membrane fluidity in the intact kidney proximal tubule measured by orientation-independent fluorescence anisotropy imaging. Biophys. J.. 1990.02; 57 (2): 241-254.

K Fushimi, M Shichiri, F Marumo. Decreased fractional excretion of urate as an indicator of prerenal azotemia. Am. J. Nephrol.. 1990; 10 (6): 489-494.

K Nagata, K Fushimi, K Sugiura, S Miyake, H Maruyama, I Murohashi, N Murakami. [A case of successful surgical treatment of rectal cancer complicated by acute myelomonocytic leukemia]. Gan No Rinsho. 1987.12; 33 (15): 1945-1949.

Takashi Shigeno, Masashi Kizuki, Masanori Tokunaga, Kiyohide Fushimi, Yusuke Kinugasa, Takeo Fujiwara. A comparison of the short-term outcomes between laparoscopic and robotic distal gastrectomy: A retrospective study using a nationwide inpatient database. Surgery. 2023.05; 173 (5): 1169-1175.

Kentaro Hayashi, Yusuke Sasabuchi, Hiroki Matsui, Mikio Nakajima, Masayuki Otawara, Hiroyuki Ohbe, Kiyohide Fushimi, Kazuyuki Ono, Hideo Yasunaga. Does early excision or skin grafting of severe burns improve prognosis? A retrospective cohort study. Burns. 2023.05; 49 (3): 554-561.

Rui Pan, Akira Okada, Hayato Yamana, Hideo Yasunaga, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Yasushi Honda, Yoonhee Kim. Association between ambient temperature and cause-specific cardiovascular disease admissions in Japan: A nationwide study. Environ Res. 2023.05; 225 115610.

Yuki Hirano, Hidehiro Kaneko, Takaaki Konishi, Hidetaka Itoh, Satoru Matsuda, Hirofumi Kawakubo, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Osamu Itano, Hideo Yasunaga, Yuko Kitagawa. Impact of Body Mass Index on Major Complications, Multiple Complications, In-hospital Mortality, and Failure to Rescue After Esophagectomy for Esophageal Cancer: A Nationwide Inpatient Database Study in Japan. Ann Surg. 2023.04; 277 (4): e785-e792.

Ryutaro Matsugaki, Keiji Muramatsu, Kiyohide Fushimi, Shinya Matsuda. Dementia and acute care of ischemic stroke in Japan: A retrospective observational study using the Japanese Diagnosis Procedure Combination database. Geriatr Gerontol Int. 2023.04; 23 (4): 270-274.

Hiroyuki Nagano, Jung-Ho Shin, Susumu Kunisawa, Kiyohide Fushimi, Miki Nagao, Yuichi Imanaka. Impact of the cefazolin shortage on the selection and cost of parenteral antibiotics during the supply disruption period in Japan: A controlled interrupted time series analysis. J Infect Public Health. 2023.03; 16 (3): 467-473.

Kojiro Morita, Hiroki Matsui, Sachiko Ono, Kiyohide Fushimi, Hideo Yasunaga. Association between better night-shift nurse staffing and surgical outcomes: A retrospective cohort study using a nationwide inpatient database in Japan. J Nurs Scholarsh. 2023.03; 55 (2): 494-505.

Takaaki Konishi, Aki Sakata, Haruhi Inokuchi, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Treatments and outcomes of adult parapharyngeal and retropharyngeal abscess: 1882 cases from a Japanese nationwide database. Am J Otolaryngol. 2023.03; 44 (2): 103770.

Wei Chen, Minato Yokoyama, Masaki Kobayashi, Bo Fan, Shohei Fukuda, Yuma Waseda, Hajime Tanaka, Soichiro Yoshida, Masumi Ai, Kiyohide Fushimi, Norio Nonomura, Yasuhisa Fujii. Trends of radical cystectomy and comparisons of surgical outcomes among surgical approaches focusing on robot-assisted radical cystectomy: A Japanese nationwide database study. Int J Urol. 2023.03; 30 (3): 258-263.

Yuya Kimura, Taisuke Jo, Norihiko Inoue, Maho Suzukawa, Goh Tanaka, Hidenori Kage, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Hirotoshi Matsui. Association Between Systemic Corticosteroid Use and Mortality in Patients with Epiglottitis. Laryngoscope. 2023.02; 133 (2): 344-349.

Kaori Morita, Michimasa Fujiogi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Jun Fujishiro. Oral Antibiotics and Organ Space Infection after Appendectomy and Intravenous Antibiotics Therapy for Complicated Appendicitis in Children. Eur J Pediatr Surg. 2023.02; 33 (1): 74-80.

Masashi Kuwabara, Fusao Ikawa, Nobuaki Michihata, Shigeyuki Sakamoto, Takahito Okazaki, Masahiro Hosogai, Yuyo Maeda, Nobutaka Horie, Kaoru Kurisu, Kiyohide Fushimi, Hideo Yasunaga. The 5-Factor Modified Frailty Index as a More Useful Associated Factor Than Chronological Age After Unruptured Cerebral Aneurysm Surgery: A Nationwide Registry Study. Neurosurgery. 2023.02; 92 (2): 329-337.

Takuaki Tani, Shinobu Imai, Norihiko Inoue, Natsuko Kanazawa, Kiyohide Fushimi. Association between volume of patients undergoing stroke rehabilitation at acute care hospitals and improvement in activities of daily living. J Stroke Cerebrovasc Dis. 2023.02; 32 (2): 106872.

Kentaro Hayashi, Yusuke Sasabuchi, Hiroki Matsui, Mikio Nakajima, Hiroyuki Ohbe, Kiyohide Fushimi, Kazuyuki Ono, Hideo Yasunaga. Additive effectiveness of acrylonitrile-co-methallyl sulfonate surface-treated membranes in the treatment of pneumonia: A propensity score-matched retrospective cohort study. Artif Organs. 2023.02; 47 (2): 408-416.

Hideaki Miyachi, Takaaki Konishi, Yohei Hashimoto, Hiroki Matsui, Kiyohide Fushimi, Takashi Inozume, Hideo Yasunaga. Clinical course and outcomes of pemphigus vulgaris and foliaceus: A retrospective study using a nationwide database in Japan. J Dermatol. 2023.02; 50 (2): 212-221.

Toshikazu Hidaka, Fusao Ikawa, Nobuaki Michihata, Shumpei Onishi, Shingo Matsuda, Iori Ozono, Shinichiro Oku, Shunsaku Takayanagi, Kiyohide Fushimi, Hideo Yasunaga, Kaoru Kurisu, Nobutaka Horie. Perioperative Surgical Risks in Patients With Hemangioblastomas: A Retrospective Nationwide Review in Japan. World Neurosurg. 2023.02; 170 e21-e27.

Shinya Miura, Nobuaki Michihata, Yohei Hashimoto, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Descriptive statistics and risk factor analysis of children with community-acquired septic shock. J Intensive Care. 2023.02; 11 (1): 6.

Wataru Mimura, Daisuke Shinjo, Kensuke Shoji, Kiyohide Fushimi. Prescribed daily-dose-based metrics of oral antibiotic use for hospitalized children in Japan. Antimicrob Steward Healthc Epidemiol. 2023.02; 3 (1): e24.

Yoshito Hirota, Jung-Ho Shin, Noriko Sasaki, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Development and validation of prediction models for the discharge destination of elderly patients with aspiration pneumonia. PLoS One. 2023.02; 18 (2): e0282272.

Toshiaki Shibata, Daisuke Shinjo, Junichi Takahashi, Kiyohide Fushimi. Pandemic-resilient target setting in colorectal cancer screening for vulnerable older population. Cancer Med. 2023.01; 12 (1): 619-630.

Takaaki Konishi, Masahiko Tanabe, Nobuaki Michihata, Hiroki Matsui, Kotoe Nishioka, Kiyohide Fushimi, Yasuyuki Seto, Hideo Yasunaga. Risk factors for arm lymphedema following breast cancer surgery: a Japanese nationwide database study of 84,022 patients. Breast Cancer. 2023.01; 30 (1): 36-45.

Y Okubo, A Nishi, K Uda, I Miyairi, N Michihata, R Kumazawa, H Matsui, K Fushimi, H Yasunaga. Financial incentives for infection prevention and antimicrobial stewardship to reduce antibiotic use: Japan's nationwide observational study. J Hosp Infect. 2023.01; 131 89-98.

Satoshi Shoji, Shun Kohsaka, Hiraku Kumamaru, Shiori Nishimura, Hideki Ishii, Tetsuya Amano, Kiyohide Fushimi, Hiroaki Miyata, Yuji Ikari. Risk prediction models in patients undergoing percutaneous coronary intervention: A collaborative analysis from a Japanese administrative dataset and nationwide academic procedure registry. Int J Cardiol. 2023.01; 370 90-97.

Yuki Hirano, Takaaki Konishi, Hidehiro Kaneko, Hidetaka Itoh, Satoru Matsuda, Hirofumi Kawakubo, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hiroyuki Daiko, Osamu Itano, Hideo Yasunaga, Yuko Kitagawa. Early postoperative non-steroidal anti-inflammatory drugs and anastomotic leakage after oesophagectomy. Br J Surg. 2023.01; 110 (2): 260-266.

Daisuke Miyazaki, Kunio Tarasawa, Kiyohide Fushimi, Kenji Fujimori. Risk Factors with 30-Day Readmission and the Impact of Length of Hospital Stay on It in Patients with Heart Failure: A Retrospective Observational Study Using a Japanese National Database. Tohoku J Exp Med. 2023.01; 259 (2): 151-162.

Takehiko Oami, Taro Imaeda, Taka-Aki Nakada, Toshikazu Abe, Nozomi Takahashi, Yasuo Yamao, Satoshi Nakagawa, Hiroshi Ogura, Nobuaki Shime, Yutaka Umemura, Asako Matsushima, Kiyohide Fushimi. Mortality analysis among sepsis patients in and out of intensive care units using the Japanese nationwide medical claims database: a study by the Japan Sepsis Alliance study group. J Intensive Care. 2023.01; 11 (1): 2.

Tetsuya Akaishi, Kunio Tarasawa, Kiyohide Fushimi, Hirotaka Hamada, Masatoshi Saito, Natsuko Kobayashi, Saya Kikuchi, Hiroaki Tomita, Tadashi Ishii, Kenji Fujimori, Nobuo Yaegashi. Risk Factors Associated With Peripartum Suicide Attempts in Japan. JAMA Netw Open. 2023.01; 6 (1): e2250661.

Rintaro Moroi, Kunio Tarasawa, Mio Ikeda, Ryotaro Matsumoto, Yusuke Shimoyama, Takeo Naito, Tetsuya Takikawa, Hisashi Shiga, Shin Hamada, Yoichi Kakuta, Kazuhiro Kikuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. Severity of acute pancreatitis in patients with inflammatory bowel disease in the era of biologics: A propensity-score-matched analysis using a nationwide database in Japan. JGH Open. 2023.01; 7 (1): 40-47.

Akira Okada, Kayo Ikeda Kurakawa, Yutaka Harita, Akira Shimizu, Satoko Yamaguchi, Shotaro Aso, Sachiko Ono, Yohei Hashimoto, Ryosuke Kumazawa, Nobuaki Michihata, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Masaomi Nangaku, Toshimasa Yamauchi, Hideo Yasunaga, Takashi Kadowaki. Comparison of bleeding complications after pediatric kidney biopsy between intravenous sedation and general anesthesia: a nationwide cohort study. BMC Pediatr. 2023.01; 23 (1): 33.

Yasuhiro Inooka, Hayato Yamana, Yusuke Shinoda, Haruhi Inokuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Nobuhiko Haga. Predictive Factors for Oral Intake Recovery After Acute Stroke: Analysis of a Japanese Nationwide Inpatient Database. Dysphagia. 2022.12; 37 (6): 1623-1632.

Tetsuya Ishimaru, Michimasa Fujiogi, Nobuaki Michihata, Takaaki Konishi, Kaori Morita, Hiroki Matsui, Kazuaki Uda, Kiyohide Fushimi, Hiroshi Kawashima, Jun Fujishiro, Hideo Yasunaga. Perioperative outcomes of laparoscopically assisted anorectoplasty versus conventional procedures for anorectal malformation: a retrospective nationwide database study. Pediatr Surg Int. 2022.12; 38 (12): 1785-1791.

Takaaki Konishi, Michimasa Fujiogi, Daisuke Shigemi, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Risk Factors for Postoperative Bleeding Following Breast Cancer Surgery: A Nationwide Database Study of 477,108 Cases in Japan. World J Surg. 2022.12; 46 (12): 3062-3071.

Takaki Hirano, Mikio Nakajima, Hiroyuki Ohbe, Richard H Kaszynski, Yudai Iwasaki, Yuki Arakawa, Yusuke Sasabuchi, Kiyohide Fushimi, Hiroki Matsui, Hideo Yasunaga. Corticosteroid use with extracorporeal cardiopulmonary resuscitation for out-of-hospital cardiac arrest: A nationwide observational study. Resusc Plus. 2022.12; 12 100308.

Yuki Hirano, Hidehiro Kaneko, Takaaki Konishi, Hidetaka Itoh, Satoru Matsuda, Hirofumi Kawakubo, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hiroyuki Daiko, Osamu Itano, Hideo Yasunaga, Yuko Kitagawa. Short-Term Outcomes of Epidural Analgesia in Minimally Invasive Esophagectomy for Esophageal Cancer: Nationwide Inpatient Data Study in Japan. Ann Surg Oncol. 2022.12; 29 (13): 8225-8234.

Yuki Hirano, Hidehiro Kaneko, Takaaki Konishi, Hidetaka Itoh, Satoru Matsuda, Hirofumi Kawakubo, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hiroyuki Daiko, Osamu Itano, Hideo Yasunaga, Yuko Kitagawa. ASO Visual Abstract: Short-Term Outcomes of Epidural Analgesia in Minimally Invasive Esophagectomy for Esophageal Cancer: Nationwide Inpatient Data Study in Japan. Ann Surg Oncol. 2022.12; 29 (13): 8237-8238.

Miki Mizuta, Kunio Tarasawa, Kiyohide Fushimi, Kenji Fujimori. Effect of Postoperative Pain Management after Robot-Assisted Radical Prostatectomy: A Study on Reducing Hospital Length of Stay and Medical Costs Using Japanese Nationwide Database. Tohoku J Exp Med. 2022.12; 259 (1): 27-35.

Hiraku Kumamaru, Yoshihiro Kakeji, Kiyohide Fushimi, Koichi Benjamin Ishikawa, Hiroyuki Yamamoto, Hideki Hashimoto, Minoru Ono, Tadashi Iwanaka, Shigeru Marubashi, Mitsukazu Gotoh, Yasuyuki Seto, Yuko Kitagawa, Hiroaki Miyata. Cost of postoperative complications of lower anterior resection for rectal cancer: a nationwide registry study of 15,187 patients. Surg Today. 2022.12; 52 (12): 1766-1774.

Hideaki Oyama, Rintaro Moroi, Kunio Tarasawa, Yusuke Shimoyama, Takeo Naito, Atsushi Sakuma, Hisashi Shiga, Yoichi Kakuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. Depression is associated with increased disease activity in patients with ulcerative colitis: A propensity score-matched analysis using a nationwide database in Japan. JGH Open. 2022.12; 6 (12): 876-885.

Kensuke Matsuda, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Koichi Sugimoto. Institutional factors associated with early mortality of newly diagnosed acute promyelocytic leukemia. Blood Cancer J. 2022.12; 12 (12): 167.

Satoshi Kuhara, Ryutaro Matsugaki, Hanaka Imamura, Hideaki Itoh, Yasushi Oginosawa, Masaru Araki, Kiyohide Fushimi, Shinya Matsuda, Satoru Saeki. A survey of the implementation rate of cardiac rehabilitation for patients with heart disease undergoing device implantation in Japan. J Arrhythm. 2022.12; 38 (6): 1049-1055.

Takuaki Tani, Shinobu Imai, Kiyohide Fushimi. Rehabilitation of Patients With Acute Ischemic Stroke Who Required Assistance Before Hospitalization Contributes to Improvement in Activities of Daily Living: A Nationwide Database Cohort Study. Arch Rehabil Res Clin Transl. 2022.12; 4 (4): 100224.

Reiko Yamaura, Tetsuji Kaneko, Koichi Benjamin Ishikawa, Shunya Ikeda, Kiyohide Fushimi, Tsutomu Yamazaki. Factors Associated With Time to Achieve Physical Functional Recovery in Patients With Severe Stoke After Inpatient Rehabilitation: A Retrospective Nationwide Cohort Study in Japan. Arch Rehabil Res Clin Transl. 2022.12; 4 (4): 100229.

Ryo Karakawa, Takaaki Konishi, Hidehiko Yoshimatsu, Yuma Fuse, Yohei Hashimoto, Hiroki Matsui, Kiyohide Fushimi, Tomoyuki Yano, Hideo Yasunaga. Comparison of short-term outcomes between pedicled- and free-flap autologous breast reconstruction: a nationwide inpatient database study in Japan. Breast Cancer. 2022.11; 29 (6): 1067-1075.

Satoshi Shoji, Shun Kohsaka, Hiraku Kumamaru, Kyohei Yamaji, Shiori Nishimura, Hideki Ishii, Tetsuya Amano, Kiyohide Fushimi, Hiroaki Miyata, Yuji Ikari. Cost reduction associated with transradial access in percutaneous coronary intervention: A report from a Japanese nationwide registry. Lancet Reg Health West Pac. 2022.11; 28 100555.

Takahisa Ogawa, Tetsuya Tachibana, Norio Yamamoto, Kazuhiko Udagawa, Hiroki Kobayashi, Kiyohide Fushimi, Toshitaka Yoshii, Atsushi Okawa, Tetsuya Jinno. Patient body mass index modifies the association between waiting time for hip fracture surgery and in-hospital mortality: A multicenter retrospective cohort study. J Orthop Sci. 2022.11; 27 (6): 1291-1297.

Hisashi Shiga, Kunio Tarasawa, Rintaro Moroi, Motoki Makuuchi, Takahiro Takahashi, Yusuke Shimoyama, Masatake Kuroha, Yoichi Kakuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. Long-term effectiveness of ustekinumab comparable to antitumor necrosis factor agents in patients with Crohn's disease. J Gastroenterol Hepatol. 2022.11; 37 (11): 2105-2112.

Fusao Ikawa, Nobuaki Michihata, Soichi Oya, Toshikazu Hidaka, Kenji Ohata, Kiyoshi Saito, Kazunari Yoshida, Kiyohide Fushimi, Hideo Yasunaga, Teiji Tominaga, Kaoru Kurisu, Nobutaka Horie. A nationwide registry study: The 5-factor modified frailty index of meningioma surgery in non-elderly and elderly patients. Clin Neurol Neurosurg. 2022.11; 222 107445.

Hirokazu Urushiyama, Taisuke Jo, Wakae Hasegawa, Akira Yokoyama, Takahiro Ando, Yukiyo Sakamoto, Ryosuke Kumazawa, Kazuaki Uda, Nobuaki Michihata, Nobuyasu Awano, Matsui Hiroki, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Effect of nintedanib on acute exacerbations of fibrosing interstitial lung diseases: a national database study in Japan. ERJ Open Res. 2022.11; 8 (4): 00209.

Nobuaki Michihata, Takanori Suzuki, Tetsushi Yoshikawa, Kazuyoshi Saito, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between intravenous immunoglobulin dose and outcomes in patients with acute Kawasaki disease. Eur J Pediatr. 2022.10; 181 (10): 3607-3615.

Takaaki Konishi, Michimasa Fujiogi, Daisuke Shigemi, Kotoe Nishioka, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Surgical and obstetric outcomes of breast cancer surgery during pregnancy: a nationwide database study in Japan. Breast Cancer Res Treat. 2022.10; 195 (3): 289-299.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Hiroyuki Ohbe, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Cost-effectiveness analysis of trastuzumab monotherapy versus adjuvant chemotherapy plus trastuzumab in elderly patients with HER2-positive early breast cancer. Jpn J Clin Oncol. 2022.10; 52 (10): 1115-1123.

Liuzhe Zhang, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Yusuke Tsuda, Sakae Tanaka, Hiroshi Kobayashi. Preoperative arterial embolization and wound complications after resection of malignant bone tumor in the pelvis: a nationwide database study. Jpn J Clin Oncol. 2022.10; 52 (10): 1176-1182.

Hideki Endo, Kyunghee Lee, Tetsu Ohnuma, Senri Watanabe, Kiyohide Fushimi. Temporal trends in clinical characteristics and in-hospital mortality among patients with COVID-19 in Japan for waves 1, 2, and 3: A retrospective cohort study. J Infect Chemother. 2022.10; 28 (10): 1393-1401.

Nozomi Takahashi, Taro Imaeda, Taka-Aki Nakada, Takehiko Oami, Toshikazu Abe, Yasuo Yamao, Satoshi Nakagawa, Hiroshi Ogura, Nobuaki Shime, Asako Matsushima, Kiyohide Fushimi. Short- versus long-course antibiotic therapy for sepsis: a post hoc analysis of the nationwide cohort study. J Intensive Care. 2022.10; 10 (1): 49.

Makoto Kaneko, Sayuri Shimizu, Ai Oishi, Kiyohide Fushimi. Impact of COVID-19 infection rates on admissions for ambulatory care sensitive conditions: nationwide difference-in-difference design in Japan. Fam Med Community Health. 2022.10; 10 (4): e001736.

Kyunghee Lee, Kozo Takase, Kiyohide Fushimi. Factors influencing patient disclosure of cancer diagnosis to the family dentist: online survey in Japan. Sci Rep. 2022.10; 12 (1): 17375.

Mikayo Toba, Masakazu Terauchi, Mutsuko Moriwaki, Satoshi Obayashi, Naoyuki Miyasaka, Kiyohide Fushimi. Fractures within 2 years of an obstetric hospitalization: analysis of nationwide administrative data in Japan. J Bone Miner Metab. 2022.09; 40 (5): 748-754.

Ryuichi Yamazaki, Hiroyuki Ohbe, Yuki Matsuda, Shinsuke Kito, Masahiro Shigeta, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early electroconvulsive therapy in patients with bipolar depression: A propensity score-matched analysis using a nationwide inpatient database. J Affect Disord. 2022.09; 312 245-251.

Naoki Hirose, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Dose-response association between nurse staffing and patient outcomes following major cancer surgeries using a nationwide inpatient database in Japan. J Clin Nurs. 2022.09; 31 (17-18): 2562-2573.

Keitaro Miyamura, Nobutoshi Nawa, Hisaaki Nishimura, Kiyohide Fushimi, Takeo Fujiwara. Association between heat exposure and hospitalization for diabetic ketoacidosis, hyperosmolar hyperglycemic state, and hypoglycemia in Japan. Environ Int. 2022.09; 167 107410.

Shigeyuki Tahara, Yujiro Hattori, Shotaro Aso, Kazuaki Uda, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Akio Morita. Trends in surgical procedures for spontaneous intracerebral hemorrhage in Japan. J Stroke Cerebrovasc Dis. 2022.09; 31 (9): 106664.

Kyosuke Kamijo, Mikio Nakajima, Daisuke Shigemi, Richard H Kaszynski, Hiroyuki Ohbe, Tadahiro Goto, Yusuke Sasabuchi, Kiyohide Fushimi, Hiroki Matsui, Hideo Yasunaga. Resuscitative endovascular balloon occlusion of the aorta for life-threatening postpartum hemorrhage: A nationwide observational study in Japan. J Trauma Acute Care Surg. 2022.09; 93 (3): 418-423.

Yasuyuki Fuseda, Nobuaki Michihata, Ryosuke Kumazawa, Kiyohide Fushimi, Hideo Yasunaga. Annual Trend in Lumbar Puncture for Infants Younger Than 3 Months Hospitalized With Suspected Serious Bacterial Infection: A Nationwide Inpatient Database Study. Pediatr Infect Dis J. 2022.08; 41 (8): 631-635.

Nobuaki Michihata, Takanori Suzuki, Akira Honda, Itsuhiro Oka, Tetsushi Yoshikawa, Kazuyoshi Saito, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Clinical Features of Kawasaki Disease With Atlantoaxial Rotatory Fixation. Pediatr Infect Dis J. 2022.08; 41 (8): 626-630.

Hiroaki Abe, Masahiko Sumitani, Hiroki Matsui, Reo Inoue, Mitsuru Konishi, Kiyohide Fushimi, Kanji Uchida, Hideo Yasunaga. Gabapentinoid Use Is Associated With Reduced Occurrence of Hyperactive Delirium in Older Cancer Patients Undergoing Chemotherapy: A Nationwide Retrospective Cohort Study in Japan. Anesth Analg. 2022.08; 135 (2): 362-369.

Yuta Nakano, Shintaro Mandai, Taku Genma, Yuichiro Akagi, Tamami Fujiki, Fumiaki Ando, Koichiro Susa, Takayasu Mori, Soichiro Iimori, Shotaro Naito, Eisei Sohara, Shinichi Uchida, Kiyohide Fushimi, Tatemitsu Rai. Nationwide mortality associated with perioperative acute dialysis requirement in major surgeries. Int J Surg. 2022.08; 104 106816.

Kayo Ikeda Kurakawa, Akira Okada, Kazuhiko Bessho, Taisuke Jo, Sachiko Ono, Nobuaki Michihata, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Satoko Yamaguchi, Toshimasa Yamauchi, Masaomi Nangaku, Takashi Kadowaki, Hideo Yasunaga. Major complications after percutaneous biopsy of native or transplanted liver in pediatric patients: a nationwide inpatient database study in Japan. BMC Gastroenterol. 2022.08; 22 (1): 395.

Takaaki Konishi, Takeshi Takamoto, Michimasa Fujiogi, Yohei Hashimoto, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Laparoscopic versus open distal pancreatectomy with or without splenectomy: A propensity score analysis in Japan. Int J Surg. 2022.08; 104 106765.

Yuki Ogawa, Hayato Yamana, Tatsuya Noda, Miwa Kishimoto, Shingo Yoshihara, Koshiro Kanaoka, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Masahiko Kawaguchi, Tomoaki Imamura. Severe Complications after General Anesthesia versus Sedation during Pediatric Diagnostic Cardiac Catheterization for Ventricular Septal Defect. J Clin Med. 2022.08; 11 (17): 5165.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Ryosuke Kumazawa, Hiroyuki Ohbe, Hiroki Matsui, Kiyohide Fushimi, Mami Ogita, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Interstitial lung disorders following postoperative radiotherapy with concurrent or sequential hormonal therapy for breast cancer: a nationwide database study in Japan. Breast Cancer. 2022.07; 29 (4): 688-697.

Hiromichi Otaka, Shinobu Imai, Takuaki Tani, Kiyohide Fushimi. Influence of inpatient rehabilitation after crisis in patients with myasthenia gravis: A retrospective cohort study using a nationwide administrative database in Japan. J Neurol Sci. 2022.07; 438 120280.

Akira Okada, Hayato Yamana, Satoko Yamaguchi, Kayo Ikeda Kurakawa, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Masaomi Nangaku, Toshimasa Yamauchi, Hideo Yasunaga, Takashi Kadowaki. Effect of Branched-Chain Amino Acid Infusion on In-Hospital Mortality of Patients With Hepatic Encephalopathy and End-Stage Kidney Disease: A Retrospective Cohort Study Using a National Inpatient Database. J Ren Nutr. 2022.07; 32 (4): 432-440.

Takuaki Tani, Shinobu Imai, Kiyohide Fushimi. Longer Daily Duration of Supervised Rehabilitation after Laparoscopic Surgery for Colorectal Cancer Improves Activities of Daily Living. J Rehabil Med. 2022.07; 54 jrm00304.

Takehiko Oami, Taro Imaeda, Taka-Aki Nakada, Toshikazu Abe, Nozomi Takahashi, Yasuo Yamao, Satoshi Nakagawa, Hiroshi Ogura, Nobuaki Shime, Yutaka Umemura, Asako Matsushima, Kiyohide Fushimi. Temporal trends of medical cost and cost-effectiveness in sepsis patients: a Japanese nationwide medical claims database. J Intensive Care. 2022.07; 10 (1): 33.

Natsumasa Nishizawa, Makoto Okawara, Masataka Mori, Yoshihisa Fujino, Shinya Matsuda, Kiyohide Fushimi, Fumihiro Tanaka. Postoperative cerebral infarction risk is related to lobectomy site in lung cancer: a retrospective cohort study of nationwide data in Japan. BMJ Open Respir Res. 2022.07; 9 (1): e001327.

Ryosuke Kumazawa, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Direct oral anticoagulants versus warfarin for secondary prevention of cerebral infarction and bleeding in older adults with atrial fibrillation. J Am Geriatr Soc. 2022.07; 70 (7): 2029-2039.

Rintaro Moroi, Kunio Tarasawa, Yusuke Shimoyama, Masatake Kuroha, Hisashi Shiga, Yoichi Kakuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. Effectiveness of colonic stent placement for obstructive colorectal cancers: An analysis of short-term results using a nationwide database in Japan. J Gastroenterol Hepatol. 2022.07; 37 (7): 1316-1325.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Association of Operative Day of the Week with the Length of Stay and Total Hospitalization Costs in Patients with Partial Mastectomy: A Nationwide Database Study in Japan. JMA J. 2022.07; 5 (3): 319-327.

Hideaki Miyachi, Takaaki Konishi, Ryosuke Kumazawa, Hiroki Matsui, Sayuri Shimizu, Kiyohide Fushimi, Hiroyuki Matsue, Hideo Yasunaga. Treatments and outcomes of generalized pustular psoriasis: A cohort of 1516 patients in a nationwide inpatient database in Japan. J Am Acad Dermatol. 2022.06; 86 (6): 1266-1274.

Yasuhisa Mori, Makoto Okawara, Kenji Fujimoto, Takuya Oba, Norihiro Sato, Shiro Kohi, Toshihisa Tamura, Jun Nagata, Yoshihisa Fujino, Kiyohide Fushimi, Shinya Matsuda, Kazunori Shibao, Keiji Hirata. Evaluation of cholecystectomy in older individuals using real-world data: a multilevel analysis based on a nationwide administrative database in Japan. J Gastroenterol. 2022.06; 57 (6): 433-440.

Yuji Nishimoto, Hiroyuki Ohbe, Hiroki Matsui, Mikio Nakajima, Yusuke Sasabuchi, Tadahiro Goto, Kojiro Morita, Kiyohide Fushimi, Yukihito Sato, Hideo Yasunaga. Predictive ability of the sequential organ failure assessment score for in-hospital mortality in patients with cardiac critical illnesses: a nationwide observational study. Eur Heart J Acute Cardiovasc Care. 2022.06; 11 (4): 312-321.

Keiko Ohisa, Hayato Yamana, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between subcutaneous steroid injection for extravasation of vesicant anticancer drugs and skin ulcers requiring surgery. Eur J Oncol Nurs. 2022.06; 58 102119.

Hiroyuki Ohbe, Tadahiro Goto, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Associations of Government-issued Intensive Care Unit Admission Criteria with Clinical Practices, Outcomes, and Intensive Care Unit Bed Occupancy. Ann Am Thorac Soc. 2022.06; 19 (6): 1013-1021.

Yoshihisa Miyamoto, Masao Iwagami, Shotaro Aso, Kazuaki Uda, Kiyohide Fushimi, Yoshifumi Hamasaki, Masaomi Nangaku, Hideo Yasunaga, Kent Doi. Postoperative outcomes of cancer surgery in patients with and without kidney failure with dialysis therapy: a matched-pair cohort study. Clin Kidney J. 2022.06; 15 (6): 1137-1143.

Shingo Morishita, Toshitaka Yoshii, Hiroyuki Inose, Takashi Hirai, Yu Matsukura, Takahisa Ogawa, Kiyohide Fushimi, Junya Katayanagi, Tetsuya Jinno, Atsushi Okawa. Perioperative Complications of Anterior Decompression with Fusion in Degenerative Cervical Myelopathy-A Comparative Study between Ossification of Posterior Longitudinal Ligament and Cervical Spondylotic Myelopathy Using a Nationwide Inpatient Database. J Clin Med. 2022.06; 11 (12): 3398.

Tatsuya Hosoi, Hayato Yamana, Hiroyuki Tamiya, Hiroki Matsui, Kiyohide Fushimi, Masahiro Akishita, Hideo Yasunaga, Sumito Ogawa. Association between comprehensive geriatric assessment and polypharmacy at discharge in patients with ischaemic stroke: A nationwide, retrospective, cohort study. EClinicalMedicine. 2022.06; 50 101528.

Natsuko Kanazawa, Norihiko Inoue, Takuaki Tani, Koichi Naito, Hiromasa Horiguchi, Kiyohide Fushimi. Implementation of Rehabilitation and Patient Outcomes During the Initial COVID-19 Pandemic. Prog Rehabil Med. 2022.06; 7 20220031.

Takaaki Konishi, Michimasa Fujiogi, Ayaka Sato, Nobuaki Michihata, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Short-Term Outcomes Following Breast Cancer Surgery With and Without Neoadjuvant Chemotherapy: A Nationwide Administrative Database Study in Japan. Ann Surg Oncol. 2022.05; 29 (5): 3000-3010.

Takaaki Konishi, Michimasa Fujiogi, Ayaka Sato, Nobuaki Michihata, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. ASO Visual Abstract: Short-Term Outcomes Following Breast Cancer Surgery With and Without Neoadjuvant Chemotherapy: A Nationwide Administrative Database Study in Japan. Ann Surg Oncol. 2022.05; 29 (5): 3013.

Takanori Suzuki, Nobuaki Michihata, Tetsushi Yoshikawa, Kazuyoshi Saito, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Low- versus high-concentration intravenous immunoglobulin for children with Kawasaki disease in the acute phase. Int J Rheum Dis. 2022.05; 25 (5): 576-583.

Natsuko Kanazawa, Takuaki Tani, Shinobu Imai, Hiromasa Horiguchi, Kiyohide Fushimi, Norihiko Inoue. Existing Data Sources for Clinical Epidemiology: Database of the National Hospital Organization in Japan. Clin Epidemiol. 2022.05; 14 689-698.

Hideaki Miyachi, Takaaki Konishi, Daisuke Shigemi, Hiroki Matsui, Sayuri Shimizu, Kiyohide Fushimi, Hiroyuki Matsue, Hideo Yasunaga. Association between psoriasis and short-term outcomes of acute myocardial infarction: A matched-pair cohort study using a nationwide inpatient database in Japan. JAAD Int. 2022.05; 8 21-30.

Shingo Morishita, Toshitaka Yoshii, Hiroyuki Inose, Takashi Hirai, Masato Yuasa, Yu Matsukura, Takahisa Ogawa, Kiyohide Fushimi, Atsushi Okawa, Takeo Fujiwara. Comparison of perioperative complications in anterior decompression with fusion and posterior decompression with fusion for thoracic ossification of the posterior longitudinal ligament -a retrospective cohort study using a nationwide inpatient database. J Orthop Sci. 2022.05; 27 (3): 600-605.

Kensuke Matsuda, Taisuke Jo, Arika Shimura, Akira Honda, Kazuki Taoka, Yosuke Masamoto, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Mineo Kurokawa. Risk of febrile neutropenia in very elderly patients aged ≥80 years receiving their first cycle of R-CHOP regimen: a nationwide real-world study in Japan. Br J Haematol. 2022.05; 197 (3): e37-e41.

Shimpei Nagata, Hiroyuki Ohbe, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Glucocorticoids and Rates of Biphasic Reactions in Patients with Adrenaline-Treated Anaphylaxis: A Propensity Score Matching Analysis. Int Arch Allergy Immunol. 2022.05; 183 (9): 939-945.

Takaaki Konishi, Tadahiro Goto, Michimasa Fujiogi, Nobuaki Michihata, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. New machine learning scoring system for predicting postoperative mortality in gastroduodenal ulcer perforation: A study using a Japanese nationwide inpatient database. Surgery. 2022.04; 171 (4): 1036-1042.

Y Iwasaki, H Ohbe, D Shigemi, K Fushimi, H Yasunaga. Effect of antithrombin III among patients with disseminated intravascular coagulation in obstetrics: a nationwide observational study in Japan. BJOG. 2022.04; 129 (5): 805-811.

Hayato Yamana, Asuka Tsuchiya, Hiromasa Horiguchi, Shigeki Morita, Tamotsu Kuroki, Kunio Nakai, Hideo Nishimura, Taisuke Jo, Kiyohide Fushimi, Hideo Yasunaga. Validity of a model using routinely collected data for identifying infections following gastric, colon, and liver cancer surgeries. Pharmacoepidemiol Drug Saf. 2022.04; 31 (4): 452-460.

Shunichi Otaka, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effectiveness of surgical fixation for rib fractures in relation to its timing: a retrospective Japanese nationwide study. Eur J Trauma Emerg Surg. 2022.04; 48 (2): 1501-1508.

Keiji Muramatsu, Hanaka Imamura, Kei Tokutsu, Kenji Fujimoto, Kiyohide Fushimi, Shinya Matsuda. Epidemiological Study of Hospital Admissions for Food-Induced Anaphylaxis Using the Japanese Diagnosis Procedure Combination Database. J Epidemiol. 2022.04; 32 (4): 163-167.

Shunichi Otaka, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Correction to: Effectiveness of surgical fixation for rib fractures in relation to its timing: a retrospective Japanese nationwide study. Eur J Trauma Emerg Surg. 2022.04; 48 (2): 1509-1511.

Takashi Tachiwada, Shingo Noguchi, Keiji Muramatsu, Kentaro Akata, Kei Yamasaki, Takashi Kido, Takeshi Asakawa, Yoshihisa Fujino, Kiyohide Fushimi, Shinya Matsuda, Hiroshi Mukae, Kazuhiro Yatera. Effects of additive corticosteroid therapy on 90-day survival in patients with community-onset pneumonia. J Infect Chemother. 2022.04; 28 (4): 496-503.

Kanako Hara, Kei Yamasaki, Masahiro Tahara, Hiroaki Ikegami, Chinatsu Nishida, Keiji Muramutsu, Yoshihisa Fujino, Shinya Matsuda, Kiyohide Fushimi, Hiroshi Mukae, Kazuhiro Yatera. Epidemiologic evaluation of pleurisy diagnosed by surgical pleural biopsy using data from a nationwide administrative database. Thorac Cancer. 2022.04; 13 (8): 1136-1142.

Akira Honda, Nobuaki Michihata, Yoichi Iizuka, Kazuaki Uda, Kojiro Morita, Tokue Mieda, Eiji Takasawa, Sho Ishiwata, Tsuyoshi Tajika, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Hirotaka Chikuda. Risk factors for severe lower extremity ischemia following venoarterial extracorporeal membrane oxygenation: an analysis using a nationwide inpatient database. Trauma Surg Acute Care Open. 2022.04; 7 (1): e000776.

Hiroyuki Ohbe, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Reply to: Resource-rich Intensive Care Units Improve Health-What Is Next? JMA J. 2022.04; 5 (2): 286-287.

Yuko Mine, Keiji Muramatsu, Kiyohide Fushimi, Shinya Matsuda. Hospitalization and discharge routes of elderly hip fracture patients with and without dementia: a nationwide cross-sectional exploratory study using the Japanese Diagnostic Procedure Combination database. Disabil Rehabil. 2022.04; 44 (8): 1268-1274.

Naoki Hirose, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between nurse aide staffing and patient mortality after major cancer surgeries in acute care settings: A retrospective cohort study. Nurs Health Sci. 2022.03; 24 (1): 283-292.

Masahiro Tahara, Tomohiro Ishimaru, Yoshihisa Fujino, Kiyohide Fushimi, Shinya Matsuda, Hiroshi Mukae, Kazuhiro Yatera. A new scoring system for predicting in-hospital death after lung cancer surgery (the SABCIP score) using a Japanese nationwide administrative database. Thorac Cancer. 2022.03; 13 (6): 870-875.

Kenji Kishimoto, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Individual and Nationwide Costs for Cancer Care During the First Year After Diagnosis Among Children, Adolescents, and Young Adults in Japan. JCO Oncol Pract. 2022.03; 18 (3): e351-e359.

Hiroki Furuya, Mikio Nakajima, Kei Ikeda, Kaito Nakamura, Hiroyuki Ohbe, Shotaro Aso, Ryosuke Kumazawa, Taro Iwamoto, Arifumi Iwata, Shunsuke Furuta, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Hiroshi Nakajima. Prognosis and Treatment of Myositis-Associated Severe Interstitial Lung Disease: A Descriptive Study Using a Nationwide Inpatient Database in Japan. Arthritis Care Res (Hoboken). 2022.03; 74 (3): 478-483.

Hiroaki Abe, Masahiko Sumitani, Hiroki Matsui, Reo Inoue, Kiyohide Fushimi, Kanji Uchida, Hideo Yasunaga. Use of naldemedine is associated with reduced incidence of hyperactive delirium in cancer patients with opioid-induced constipation: A nationwide retrospective cohort study in Japan. Pharmacotherapy. 2022.03; 42 (3): 241-249.

Satoshi Kodama, Taisuke Jo, Hideo Yasunaga, Nobuaki Michihata, Hiroki Matsui, Ryosuke Kumazawa, Yuichiro Shirota, Kiyohide Fushimi, Tatsushi Toda, Masashi Hamada. Outcomes of gastrointestinal cancer surgeries in Parkinson's disease patients: A nationwide study. Parkinsonism Relat Disord. 2022.03; 96 45-49.

Nobuyasu Awano, Taisuke Jo, Takehiro Izumo, Minoru Inomata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hirokazu Urushiyama, Takahide Nagase, Hideo Yasunaga. Recombinant human soluble thrombomodulin for acute exacerbation of idiopathic pulmonary fibrosis: a nationwide observational study. J Intensive Care. 2022.03; 10 (1): 14.

Yuichi Ishikawa, Kazuhisa Nakano, Kei Tokutsu, Shingo Nakayamada, Shinya Matsuda, Kiyohide Fushimi, Yoshiya Tanaka. Short-Term Prognostic Factors in Hospitalized Herpes Zoster Patients and Its Associated Cerebro-Cardiovascular Events: A Nationwide Retrospective Cohort in Japan. Front Med (Lausanne). 2022.03; 9 843809.

Mayuko Tonai, Atsushi Shiraishi, Toshiyuki Karumai, Akira Endo, Hirotada Kobayashi, Kiyohide Fushimi, Yoshiro Hayashi. Hospital-onset sepsis and community-onset sepsis in critical care units in Japan: a retrospective cohort study based on a Japanese administrative claims database. Crit Care. 2022.03; 26 (1): 136.

Mio Ikeda, Shin Hamada, Kazuhiro Kikuta, Tetsuya Takikawa, Naoki Yoshida, Ryotaro Matsumoto, Yu Tanaka, Fumiya Kataoka, Akira Sasaki, Kunio Tarasawa, Kenji Fujimori, Kiyohide Fushimi, Atsushi Masamune. Acute Pancreatitis in Japan: Comparison of Before and After Revision of the Clinical Guidelines. Pancreas. 2022.03; 51 (3): 261-268.

Hisaaki Nishimura, Nobutoshi Nawa, Takahisa Ogawa, Kiyohide Fushimi, Takeo Fujiwara. Association of ambient temperature and sun exposure with hip fractures in Japan: A time-series analysis using nationwide inpatient database. Sci Total Environ. 2022.02; 807 (Pt 1): 150774.

Shoichiro Hamada, Mikio Nakajima, Richard H Kaszynski, Shunichi Otaka, Hideaki Goto, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Yamaguchi, Hideo Yasunaga. Association between adjunct clindamycin and in-hospital mortality in patients with necrotizing soft tissue infection due to group A Streptococcus: a nationwide cohort study. Eur J Clin Microbiol Infect Dis. 2022.02; 41 (2): 263-270.

Tetsuji Morishita, Daisuke Takada, Jung-Ho Shin, Takuya Higuchi, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Effects of the COVID-19 pandemic on heart failure hospitalizations in Japan: interrupted time series analysis. ESC Heart Fail. 2022.02; 9 (1): 31-38.

Hiroki Matsui, Hayato Yamana, Kiyohide Fushimi, Hideo Yasunaga. Development of Deep Learning Models for Predicting In-Hospital Mortality Using an Administrative Claims Database: Retrospective Cohort Study. JMIR Med Inform. 2022.02; 10 (2): e27936.

Takahisa Ogawa, Haggai Schermann, Aayush Khadka, Janelle Moross, Mutsuko Moriwaki, Kiyohide Fushimi, Takeo Fujiwara, Toshitaka Yoshii, Atsushi Okawa, Shinichi Shirasawa. Impact of orthogeriatric care management by orthopedic surgeons and physicians on in-hospital clinical outcomes: A difference-in-difference analysis. Geriatr Gerontol Int. 2022.02; 22 (2): 138-144.

T Sakamoto, M Fujiogi, M Ishimaru, H Matsui, K Fushimi, H Yasunaga. Comparison of postoperative infection after emergency inguinal hernia surgery with enterectomy between mesh repair and non-mesh repair: a national database analysis. Hernia. 2022.02; 26 (1): 217-223.

Sho Hasegawa, Akira Okada, Shotaro Aso, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Masaomi Nangaku. Association Between Diabetes and Major Bleeding Complications of Renal Biopsy. Kidney Int Rep. 2022.02; 7 (2): 232-240.

Risa Suzuki, Nobuo Sakata, Kiyohide Fushimi. Association of body mass index with Clostridioides difficile infection among older patients with pneumonia in Japan. Geriatr Gerontol Int. 2022.01; 22 (1): 63-67.

Tomoko Shiraishi, Keishi Oda, Kei Yamasaki, Takashi Kido, Konomi Sennari, Hiroshi Mukae, Makoto Ohtani, Yoshihisa Fujino, Shinya Matsuda, Kiyohide Fushimi, Kazuhiro Yatera. Risk factors for in-hospital mortality in patients with advanced lung cancer with interstitial pneumonia undergoing systemic chemotherapy: A retrospective and observational study using a nationwide administrative database in Japan. Thorac Cancer. 2022.01; 13 (2): 236-246.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Takayoshi Niwa, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Impact of body mass index on short-term outcomes after differentiated thyroid cancer surgery: a nationwide inpatient database study in Japan. Eur Thyroid J. 2022.01; 11 (1): e210081.

Jun Suzuki, Yusuke Sasabuchi, Shuji Hatakeyama, Hiroki Matsui, Teppei Sasahara, Yuji Morisawa, Toshiyuki Yamada, Kiyohide Fushimi, Hideo Yasunaga. Additional effect of azithromycin over β-lactam alone for severe community-acquired pneumonia-associated acute respiratory distress syndrome: a retrospective cohort study. Pneumonia (Nathan). 2022.01; 14 (1): 1.

Kota Yano, Rintaro Moroi, Hisashi Shiga, Kunio Tarasawa, Yusuke Shimoyama, Masatake Kuroha, Shin Hamada, Yoichi Kakuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. Analysis of the disease activity of ulcerative colitis with and without concomitant primary sclerosing cholangitis: An investigation using a nationwide database in Japan. JGH Open. 2022.01; 6 (1): 50-56.

Taisuke Jo, Nobuaki Michihata, Hayato Yamana, Kojiro Morita, Miho Ishimaru, Yasuhiro Yamauchi, Wakae Hasegawa, Hirokazu Urushiyama, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Risk of drug-induced interstitial lung disease in hospitalised patients: a nested case-control study. Thorax. 2021.12; 76 (12): 1193-1199.

Minato Yokoyama, Junichiro Ishioka, Mikayo Toba, Hiroshi Fukushima, Hajime Tanaka, Soichiro Yoshida, Yoh Matsuoka, Masumi Ai, Kiyohide Fushimi, Yasuhisa Fujii. Trends and safety of robot-assisted partial nephrectomy during the initial 2-year period after government approval in Japan: A nationwide database study from 2016 to 2018. Int J Urol. 2021.12; 28 (12): 1268-1272.

Hayato Yamana, Shinobu Imai, Kazumi Yamasaki, Hiromasa Horiguchi, Keisuke Ario, Tatsuji Komatsu, Rie Sugimoto, Shinji Katsushima, Atsushi Naganuma, Yutaka Mano, Tsutomu Yamashita, Hiroshi Kamitsukasa, Satoru Tsuruta, Taisuke Jo, Hideo Yasunaga, Kiyohide Fushimi, Hiroshi Yatsuhashi. Prognosis of patients with liver cirrhosis: A multi-center retrospective observational study. Hepatol Res. 2021.12; 51 (12): 1196-1206.

Hiroko Abe, Kunio Tarasawa, Waku Hatta, Kaname Uno, Tomoyuki Koike, Kenji Fujimori, Kiyohide Fushimi, Atsushi Masamune. Reply to "Acid suppressants during hospitalization and after discharge in patients after gastroduodenal ESD". J Gastroenterol. 2021.12; 56 (12): 1109-1110.

Takuaki Tani, Shinobu Imai, Kiyohide Fushimi. Impact of the COVID-19 pandemic on emergency admission for patients with stroke: a time series study in Japan. Neurol Res Pract. 2021.12; 3 (1): 64.

Hiroyuki Nagano, Jung-Ho Shin, Tetsuji Morishita, Daisuke Takada, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Hospitalization for ischemic stroke was affected more in independent cases than in dependent cases during the COVID-19 pandemic: An interrupted time series analysis. PLoS One. 2021.12; 16 (12): e0261587.

Akira Honda, Nobuaki Michihata, Yoichi Iizuka, Tokue Mieda, Eiji Takasawa, Sho Ishiwata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Hirotaka Chikuda. Clinical features and early post-operative complications of isolated C2 odontoid fractures: a retrospective analysis using a national inpatient database in Japan. Eur Spine J. 2021.12; 30 (12): 3631-3638.

Hiroyuki Tamiya, Hideo Yasunaga, Tatsuya Hosoi, Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Masahiro Akishita, Sumito Ogawa. Association between protein intake and mortality in older patients receiving parenteral nutrition: a retrospective observational study. Am J Clin Nutr. 2021.12; 114 (6): 1907-1916.

Takanori Suzuki, Nobuaki Michihata, Shotaro Aso, Tetsushi Yoshikawa, Kazuyoshi Saito, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Sodium-containing versus sodium-trace preparations of IVIG for children with Kawasaki disease in the acute phase. Eur J Pediatr. 2021.11; 180 (11): 3279-3286.

Kensuke Nakamura, Hiroyuki Ohbe, Kazuaki Uda, Kiyohide Fushimi, Hideo Yasunaga. Early rehabilitation after acute myocardial infarction: A nationwide inpatient database study. J Cardiol. 2021.11; 78 (5): 456-462.

Yutaka Kondo, Hiroyuki Ohbe, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hiroshi Tanaka, Hideo Yasunaga. Efficacy of Prophylactic Antibiotics during Extracorporeal Membrane Oxygenation: A Nationwide Cohort Study. Ann Am Thorac Soc. 2021.11; 18 (11): 1861-1867.

Yusuke Ugata, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Impact of proton pump inhibitors on mortality and severe esophageal injury after catheter ablation for atrial fibrillation: a nationwide retrospective study using propensity score matching. Heart Vessels. 2021.11; 36 (11): 1730-1738.

Takahisa Ogawa, Haggai Schermann, Hiroki Kobayashi, Kiyohide Fushimi, Atsushi Okawa, Tetsuya Jinno. Age and clinical outcomes after hip fracture surgery: do octogenarian, nonagenarian and centenarian classifications matter? Age Ageing. 2021.11; 50 (6): 1952-1960.

Kayo Ikeda Kurakawa, Akira Okada, Katsunori Manaka, Takaaki Konishi, Taisuke Jo, Sachiko Ono, Kazuaki Uda, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Satoko Yamaguchi, Toshimasa Yamauchi, Masaomi Nangaku, Hideo Yasunaga, Takashi Kadowaki. Clinical Characteristics and Incidences of Benign and Malignant Insulinoma Using a National Inpatient Database in Japan. J Clin Endocrinol Metab. 2021.11; 106 (12): 3477-3486.

Sachie Shirane, Nobuaki Michihata, Kazuhiro Yoshiuchi, Keisuke Ariyoshi, Satoru Iwase, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Evaluation of quality indicators near death in older adult cancer decedents in Japan: A nationwide retrospective cohort study. Jpn J Clin Oncol. 2021.11; 51 (11): 1643-1648.

Shintaro Mandai, Fumiaki Ando, Takayasu Mori, Koichiro Susa, Soichiro Iimori, Shotaro Naito, Eisei Sohara, Shinichi Uchida, Kiyohide Fushimi, Tatemitsu Rai. Burden of kidney disease on the discrepancy between reasons for hospital admission and death: An observational cohort study. PLoS One. 2021.11; 16 (11): e0258846.

Yukiyo Sakamoto, Yasuhiro Yamauchi, Taisuke Jo, Nobuaki Michihata, Wakae Hasegawa, Hideyuki Takeshima, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. In-hospital mortality associated with community-acquired pneumonia due to methicillin-resistant Staphylococcus aureus: a matched-pair cohort study. BMC Pulm Med. 2021.11; 21 (1): 345.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Ryosuke Kumazawa, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Outcomes of Nonoperative Treatment for Gastroduodenal Ulcer Perforation: a Nationwide Study of 14,918 Inpatients in Japan. J Gastrointest Surg. 2021.11; 25 (11): 2770-2777.

Hiroyuki Ohbe, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of Daikenchuto for Mechanically Ventilated Patients With Enteral Feeding Intolerance: A Propensity Score-Matched Analysis Using a Nationwide Administrative Inpatient Database. JPEN J Parenter Enteral Nutr. 2021.11; 45 (8): 1703-1713.

Megumi Koizumi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Factors associated with the occurrence of stomal stenosis after tracheostomy in adults. Auris Nasus Larynx. 2021.10; 48 (5): 973-977.

Kensuke Matsuda, Taisuke Jo, Kazuhiro Toyama, Kumi Nakazaki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Mineo Kurokawa. Risk factors for early in-hospital death in patients who developed coagulopathy during induction therapy for acute promyelocytic leukemia: a nationwide analysis in Japan. Ann Hematol. 2021.10; 100 (10): 2613-2619.

Shingo Yoshihara, Hayato Yamana, Manabu Akahane, Miwa Kishimoto, Yuichi Nishioka, Tatsuya Noda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Kei Kasahara, Tomoaki Imamura. Association between prophylactic antibiotic use for transarterial chemoembolization and occurrence of liver abscess: a retrospective cohort study. Clin Microbiol Infect. 2021.10; 27 (10): 1514.e5-1514.e10.

Takahisa Ogawa, Tetsuya Jinno, Mutsuko Moriwaki, Toshitaka Yoshii, Ara Nazarian, Kiyohide Fushimi, Atsushi Okawa. Association between hospital surgical volume and complications after total hip arthroplasty in femoral neck fracture: A propensity score-matched cohort study. Injury. 2021.10; 52 (10): 3002-3010.

Kaito Nakamura, Hiroyuki Ohbe, Kei Ikeda, Kazuaki Uda, Hiroki Furuya, Shunsuke Furuta, Mikio Nakajima, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Hiroshi Nakajima. Intravenous cyclophosphamide in acute exacerbation of rheumatoid arthritis-related interstitial lung disease: A propensity-matched analysis using a nationwide inpatient database. Semin Arthritis Rheum. 2021.10; 51 (5): 977-982.

Naoki Hirose, Kojiro Morita, Mitsuhiro Nakamura, Kiyohide Fushimi, Hideo Yasunaga. Association between the duration of physical restraint and pulmonary embolism in psychiatric patients: A nested case-control study using a Japanese nationwide database. Arch Psychiatr Nurs. 2021.10; 35 (5): 534-540.

Akahito Sako, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Hidekatsu Yanai, Yoshiaki Gu, Norio Ohmagari. Hospitalization for urinary tract infections in Japan, 2010-2015: a retrospective study using a national inpatient database. BMC Infect Dis. 2021.10; 21 (1): 1048.

Hiroyuki Ohbe, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Resource-rich Intensive Care Units vs. Standard Intensive Care Units on Patient Mortality: A Nationwide Inpatient Database Study. JMA J. 2021.10; 4 (4): 397-404.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Comparisons of postoperative outcomes after breast cancer surgery in patients with and without renal replacement therapy: a matched-pair cohort study using a Japanese nationwide inpatient database. Breast Cancer. 2021.09; 28 (5): 1112-1119.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Dexmedetomidine and Mortality From Sepsis Requiring Mechanical Ventilation: A Japanese Nationwide Retrospective Cohort Study. J Intensive Care Med. 2021.09; 36 (9): 1036-1043.

Kojiro Morita, Hiroki Fukahori, Hirofumi Ogawara, Masao Iwagami, Hiroki Matsui, Toru Okura, Sakiko Itoh, Kiyohide Fushimi, Hideo Yasunaga. Outcomes of a financial incentive scheme for dementia care by dementia specialist teams in acute-care hospitals: A difference-in-differences analysis of a nationwide retrospective cohort study in Japan. Int J Geriatr Psychiatry. 2021.09; 36 (9): 1386-1397.

Ryuichi Yamazaki, Hiroyuki Ohbe, Yuki Matsuda, Shinsuke Kito, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early Electroconvulsive Therapy in Patients With Major Depressive Disorder: A Propensity Score-Matched Analysis Using a Nationwide Inpatient Database in Japan. J ECT. 2021.09; 37 (3): 176-181.

Mizue Matsuo, Keiji Muramatsu, Shinya Matsuda, Kiyohide Fushimi, Yasuo Kaizuka, Masayuki Kamochi. Age-dependent influence of premorbid underweight status on mortality in severe burn patients: An administrative database study. Burns. 2021.09; 47 (6): 1314-1321.

Taro Imaeda, Taka-Aki Nakada, Nozomi Takahashi, Yasuo Yamao, Satoshi Nakagawa, Hiroshi Ogura, Nobuaki Shime, Yutaka Umemura, Asako Matsushima, Kiyohide Fushimi. Trends in the incidence and outcome of sepsis using data from a Japanese nationwide medical claims database-the Japan Sepsis Alliance (JaSA) study group. Crit Care. 2021.09; 25 (1): 338.

Kenji Fujimori, Kunio Tarasawa, Kiyohide Fushimi. Effectiveness of polymyxin B hemoperfusion for sepsis depends on the baseline SOFA score: a nationwide observational study. Ann Intensive Care. 2021.09; 11 (1): 141.

Natsuko Kanazawa, Sumio Yamada, Kiyohide Fushimi. Trends in the Use of Cardiac Rehabilitation in Japan Between 2010 and 2017 - An Epidemiological Survey. Circ Rep. 2021.09; 3 (10): 569-577.

Takashi Sakamoto, Michimasa Fujiogi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Comparing Perioperative Mortality and Morbidity of Minimally Invasive Esophagectomy Versus Open Esophagectomy for Esophageal Cancer: A Nationwide Retrospective Analysis. Ann Surg. 2021.08; 274 (2): 324-330.

Kensuke Matsuda, Taisuke Jo, Masashi Miyauchi, Kazuhiro Toyama, Kumi Nakazaki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Mineo Kurokawa. Difference of preventing effects of G-CSF according to age in patients with malignant lymphoma: A nation-wide analysis in Japan. J Infect Chemother. 2021.08; 27 (8): 1151-1155.

Kenji Fujimori, Kunio Tarasawa, Kiyohide Fushimi. Effects of polymyxin B hemoperfusion in patients with sepsis requiring continuous hemodiafiltration: Analysis of a nationwide administrative database in Japan. Ther Apher Dial. 2021.08; 25 (4): 384-389.

Yujiro Hattori, Shigeyuki Tahara, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Akio Morita. Prophylactic steroid administration and complications after transsphenoidal pituitary surgery: a nationwide inpatient database study in Japan. Br J Anaesth. 2021.08; 127 (2): e41-e43.

Sayomi Tsukada, Sayuri Shimizu, Kiyohide Fushimi. Rocuronium reversed with sugammadex for thymectomy in myasthenia gravis: A retrospective analysis of complications from Japan. Eur J Anaesthesiol. 2021.08; 38 (8): 850-855.

Shingo Morishita, Toshitaka Yoshii, Hiroyuki Inose, Takashi Hirai, Masato Yuasa, Yu Matsukura, Takahisa Ogawa, Kiyohide Fushimi, Atsushi Okawa, Takeo Fujiwara. Comparison of Perioperative Complications in Anterior Decompression With Fusion and Posterior Decompression With Fusion for Cervical Spondylotic Myelopathy: Propensity Score Matching Analysis Using a Nationwide Inpatient Database. Clin Spine Surg. 2021.08; 34 (7): E425-E431.

Koichi Kobayashi, Taisuke Jo, Wataru Mimura, Maho Suzukawa, Nobuharu Ohshima, Goh Tanaka, Manabu Akazawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase, Hideaki Nagai. Interrupted time-series analyses of routine vaccination program for elderly pneumonia patients in Japan; an ecological study using aggregated nationwide inpatient data. Hum Vaccin Immunother. 2021.08; 17 (8): 2661-2669.

Akira Yokoyama, Yukiyo Sakamoto, Taisuke Jo, Hirokazu Urushiyama, Hiroyuki Tamiya, Goh Tanaka, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Pulmonary disease as a risk factor for transfusion-related acute lung injury. ERJ Open Res. 2021.08; 7 (3): 00039-2021.

Manabu Nitta, Sayuri Shimizu, Makoto Kaneko, Kiyohide Fushimi, Shinichiro Ueda. Outcomes of women with congenital heart disease admitted to acute-care hospitals for delivery in Japan: a retrospective cohort study using nationwide Japanese diagnosis procedure combination database. BMC Cardiovasc Disord. 2021.08; 21 (1): 409.

Takeshi Kitamura, Mikio Nakajima, Iwanari Kawamura, Richard H Kaszynski, Hiroyuki Ohbe, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Seiji Fukamizu, Hideo Yasunaga. Safety and effectiveness of intracardiac echocardiography in ventricular tachycardia ablation: a nationwide observational study. Heart Vessels. 2021.07; 36 (7): 1009-1015.

Shingo Ohki, Koji Hosokawa, Shinichi Tomioka, Masumi Matsuoka, Kiyohide Fushimi, Shinya Matsuda, Nobuaki Shime. Pediatric Fulminant Myocarditis in Japan: A Retrospective Nationwide Database Study of Hospital Volume, Management Practices, and Mortality. Pediatr Crit Care Med. 2021.07; 22 (7): e391-e401.

Hiroko Abe, Waku Hatta, Yohei Ogata, Tomoyuki Koike, Masahiro Saito, Xiaoyi Jin, Kenichiro Nakagawa, Takeshi Kanno, Kaname Uno, Naoki Asano, Akira Imatani, Tomohiro Nakamura, Naoki Nakaya, Kunio Tarasawa, Kenji Fujimori, Kiyohide Fushimi, Atsushi Masamune. Prevention of delayed bleeding with vonoprazan in upper gastrointestinal endoscopic treatment. J Gastroenterol. 2021.07; 56 (7): 640-650.

Takeshi Hatachi, Nobuaki Michihata, Yu Inata, Muneyuki Takeuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Prognostic Factors Among Children With Acute Encephalitis/Encephalopathy Associated With Viral and Other Pathogens. Clin Infect Dis. 2021.07; 73 (1): 76-82.

Ryoko Sawada, Hayato Yamana, Yusuke Shinoda, Yusuke Tsuda, Hiroki Matsui, Kiyohide Fushimi, Hiroshi Kobayashi, Yoshitaka Matsubayashi, Hideo Yasunaga, Sakae Tanaka, Nobuhiko Haga. Predictive factors of the 30-day mortality after surgery for spinal metastasis: Analysis of a nationwide database. J Orthop Sci. 2021.07; 26 (4): 666-671.

Shunsuke Edakubo, Norihiko Inoue, Kiyohide Fushimi. Effect of Early Central Venous Catheterization on Mortality Among Patients with Severe Sepsis: A Nationwide Inpatient Database Study. Shock. 2021.07; 56 (1): 52-57.

Hiroshi Hidaka, Kunio Tarasawa, Kenji Fujimori, Taku Obara, Kiyohide Fushimi, Tomofumi Sakagami, Masao Yagi, Hiroshi Iwai. Identification of risk factors for mortality and delayed oral dietary intake in patients with open drainage due to deep neck infections: Nationwide study using a Japanese inpatient database. Head Neck. 2021.07; 43 (7): 2002-2012.

Hongsoo Kim, Shou-Hsia Cheng, Hayato Yamana, Seyune Lee, Nan-He Yoon, Yi-Chieh Lin, Kiyohide Fushimi, Hideo Yasunaga. Variations in hip fracture inpatient care in Japan, Korea, and Taiwan: an analysis of health administrative data. BMC Health Serv Res. 2021.07; 21 (1): 694.

Goh Tanaka, Taisuke Jo, Hiroyuki Tamiya, Yukiyo Sakamoto, Wakae Hasegawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Factors affecting in-hospital mortality of non-tuberculous mycobacterial pulmonary disease. BMC Infect Dis. 2021.07; 21 (1): 698.

Yuko Usagawa, Kosaku Komiya, Mari Yamasue, Kiyohide Fushimi, Kazufumi Hiramatsu, Jun-Ichi Kadota. Efficacy of extracorporeal membrane oxygenation for acute respiratory failure with interstitial lung disease: a case control nationwide dataset study in Japan. Respir Res. 2021.07; 22 (1): 211.

Rintaro Moroi, Kunio Tarasawa, Hisashi Shiga, Kota Yano, Yusuke Shimoyama, Masatake Kuroha, Yoichi Kakuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. Efficacy of urgent colonoscopy for colonic diverticular bleeding: A propensity score-matched analysis using a nationwide database in Japan. J Gastroenterol Hepatol. 2021.06; 36 (6): 1598-1604.

Kensuke Matsuda, Taisuke Jo, Kazuhiro Toyama, Kumi Nakazaki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Efficacy of recombinant human soluble thrombomodulin in induction therapy for acute promyelocytic leukemia. Thromb Res. 2021.06; 202 173-175.

Hirokazu Urushiyama, Taisuke Jo, Wakae Hasegawa, Takahiro Ando, Yukiyo Sakamoto, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Preoperative use of pirfenidone and reduced risk of postoperative severe respiratory complications in patients with idiopathic pulmonary fibrosis: Propensity score-matched analysis using a nationwide database in Japan. Respirology. 2021.06; 26 (6): 590-596.

Hiroyuki Ohbe, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Small-bore feeding tube versus large-bore sump tube for early enteral nutrition in mechanically ventilated patients: A nationwide inpatient database study. Clin Nutr. 2021.06; 40 (6): 4113-4119.

Kenji Fujimori, Kunio Tarasawa, Kiyohide Fushimi. Effects of Polymyxin B Hemoperfusion on Septic Shock Patients Requiring Noradrenaline: Analysis of a Nationwide Administrative Database in Japan. Blood Purif. 2021.06; 50 (4-5): 560-565.

Shunichi Otaka, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Associations between early parenteral nutrition and in-hospital outcomes in underweight patients with gastrointestinal surgery. Clin Nutr ESPEN. 2021.06; 43 464-470.

Nobuyuki Yotani, Daisuke Shinjo, Motohiro Kato, Kimikazu Matsumoto, Kiyohide Fushimi, Yoshiyuki Kizawa. Current status of intensive end-of-life care in children with hematologic malignancy: a population-based study. BMC Palliat Care. 2021.06; 20 (1): 82.

Takahisa Ogawa, Toshitaka Yoshii, Atsushi Okawa, Kiyohide Fushimi, Tetsuya Jinno. Association Between Cemented vs Cementless Hemiarthroplasty and Short-Term Change of In-Hospital Mortality in Elderly Patients with Femoral Neck Fracture: A Propensity-Score Matching Analysis in a Multicenter Database. Clin Interv Aging. 2021.06; 16 1151-1159.

Nobuyasu Awano, Taisuke Jo, Hideo Yasunaga, Minoru Inomata, Naoyuki Kuse, Mari Tone, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase, Takehiro Izumo. Body mass index and in-hospital mortality in patients with acute exacerbation of idiopathic pulmonary fibrosis. ERJ Open Res. 2021.06; 7 (2): 00037-2021.

Daisuke Shinjo, Hisateru Tachimori, Keiko Maruyama-Sakurai, Kenji Fujimori, Norihiko Inoue, Kiyohide Fushimi. Consultation-liaison psychiatry in Japan: a nationwide retrospective observational study. BMC Psychiatry. 2021.05; 21 (1): 235.

Yusuke Okubo, Nobuaki Michihata, Naho Morisaki, Koichi Yoshida, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effects of Glucocorticoids on Hospitalized Children With Anaphylaxis. Pediatr Emerg Care. 2021.05; 37 (5): 255-259.

Takahisa Ogawa, Toshitaka Yoshii, Masaya Higuchi, Shingo Morishita, Kiyohide Fushimi, Takeo Fujiwara, Atsushi Okawa. Seasonality of mortality and in-hospital complications in hip fracture surgery: Retrospective cohort research using a nationwide inpatient database. Geriatr Gerontol Int. 2021.05; 21 (5): 398-403.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Comparing outcomes of nonoperative treatment for adhesive small bowel obstruction with and without antibiotics. J Infect Chemother. 2021.05; 27 (5): 690-695.

Hiroki Yasui, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Satoru Iwase, Kazuhiro Yoshiuchi, Yasushi Sakata, Hideo Yasunaga. Association between ambulance use and hospitalization costs among heart failure patients. Heart Vessels. 2021.05; 36 (5): 654-658.

Daisuke Shigemi, Shunsuke Isogai, Kazuaki Uda, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between rehabilitation during hospitalization and perinatal outcomes among pregnant women with threatened preterm birth. J Matern Fetal Neonatal Med. 2021.04; 34 (7): 1028-1033.

Yuki Miyamoto, Hiroyuki Ohbe, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of tranexamic acid in patients with colonic diverticular bleeding: A nationwide inpatient database study. J Gastroenterol Hepatol. 2021.04; 36 (4): 999-1005.

Noriko Morioka, Mutsuko Moriwaki, Jun Tomio, Kiyohide Fushimi, Yasuko Ogata. Dementia and patient outcomes after hip surgery in older patients: A retrospective observational study using nationwide administrative data in Japan. PLoS One. 2021.04; 16 (4): e0249364.

Ryutaro Matsugaki, Makoto Ohtani, Yuko Mine, Satoru Saeki, Kiyohide Fushimi, Shinya Matsuda. Pre-transplant Rehabilitation to Decrease the Post-transplant Length of Stay for Hematological Malignancy Patients Undergoing Allo-HSCT. Prog Rehabil Med. 2021.04; 6 20210020.

Toru Takiguchi, Hiroyuki Ohbe, Mikio Nakajima, Yusuke Sasabuchi, Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Shoji Yokobori, Hideo Yasunaga. Intermittent versus continuous neuromuscular blockade during target temperature management after cardiac arrest: A nationwide observational study. J Crit Care. 2021.04; 62 276-282.

Shinako Miyano, Nobuaki Michihata, Ken-Ei Sada, Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Masaomi Nangaku, Hideo Yasunaga. Comparison of fracture risk between proton pump inhibitors and histamine-2 receptor antagonists in ANCA-associated vasculitis patients: a nested case-control study. Rheumatology (Oxford). 2021.04; 60 (4): 1717-1723.

Takahisa Ogawa, Toshitaka Yoshii, Shingo Morishita, Mutsuko Moriwaki, Atsushi Okawa, Ara Nazarian, Kiyohide Fushimi, Takeo Fujiwara. Seasonal impact on surgical site infections in hip fracture surgery: Analysis of 330,803 cases using a nationwide inpatient database. Injury. 2021.04; 52 (4): 898-904.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Comparison of short-term surgical outcomes between men and women with breast cancer: a retrospective study using nationwide inpatient data in Japan. Breast Cancer Res Treat. 2021.04; 186 (3): 731-739.

Fusao Ikawa, Naoyuki Isobe, Nobuaki Michihata, Soichi Oya, Kenji Ohata, Kiyoshi Saito, Kazunari Yoshida, Kiyohide Fushimi, Hideo Yasunaga, Teiji Tominaga, Kaoru Kurisu. In-Hospital Complications After Surgery in Elderly Patients with Asymptomatic or Minor Symptom Meningioma: A Nationwide Registry Study. World Neurosurg. 2021.04; 148 e459-e470.

Akira Okada, Hayato Yamana, Kojiro Morita, Yukihito Sato, Satoko Yamaguchi, Kayo Ikeda Kurakawa, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Masaomi Nangaku, Toshimasa Yamauchi, Hideo Yasunaga, Takashi Kadowaki. Potassium Concentration in Initial Fluid Therapy and In-Hospital Mortality of Patients with Diabetic Ketoacidosis. J Clin Endocrinol Metab. 2021.04; 106 (5): e2162-e2175.

Rintaro Moroi, Hisashi Shiga, Kunio Tarasawa, Kota Yano, Yusuke Shimoyama, Masatake Kuroha, Yoichi Kakuta, Kiyohide Fushimi, Kenji Fujimori, Yoshitaka Kinouchi, Atsushi Masamune. The clinical practice of ulcerative colitis in elderly patients: An investigation using a nationwide database in Japan. JGH Open. 2021.04; 5 (8): 842-848.

Chikako Shirai, Satoru Tsuda, Kunio Tarasawa, Kiyohide Fushimi, Kenji Fujimori, Toru Nakazawa. Risk factors leading to trabeculectomy surgery of glaucoma patient using Japanese nationwide administrative claims data: a retrospective non-interventional cohort study. BMC Ophthalmol. 2021.03; 21 (1): 153.

Hiroyuki Ohbe, Tadahiro Goto, Ryuichi Yamazaki, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Clinical Trajectories of Suicide Attempts and Self-harm in Patients Admitted to Acute-care Hospitals in Japan: A Nationwide Inpatient Database Study. J Epidemiol. 2021.03; 31 (3): 231-236.

T Konishi, M Fujiogi, N Michihata, H Tanaka-Mizutani, K Morita, H Matsui, K Fushimi, M Tanabe, Y Seto, H Yasunaga. Breast cancer surgery in patients with schizophrenia: short-term outcomes from a nationwide cohort. Br J Surg. 2021.03; 108 (2): 168-173.

Takuya Okuno, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Intra-operative autologous blood donation for cardiovascular surgeries in Japan: A retrospective cohort study. PLoS One. 2021.03; 16 (3): e0247282.

Manabu Kawata, Taisuke Jo, Shuji Taketomi, Hiroshi Inui, Ryota Yamagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Sakae Tanaka. Type of bone graft and primary diagnosis were associated with nosocomial surgical site infection after high tibial osteotomy: analysis of a national database. Knee Surg Sports Traumatol Arthrosc. 2021.02; 29 (2): 429-436.

Kazunori Oda, Shotaro Aso, Yujiro Hattori, Fumio Yamaguchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Akio Morita. Snowfall reduces the risk of chronic subdural hematoma onset: Analysis of an administrative database in Japan. Surg Neurol Int. 2021.02; 12 69.

Maiko Yagi, Kojiro Morita, Hiroki Matsui, Nobuaki Michihata, Kiyohide Fushimi, Teruyuki Koyama, Junko Fujitani, Hideo Yasunaga. Outcomes After Intensive Rehabilitation for Mechanically Ventilated Patients: A Nationwide Retrospective Cohort Study. Arch Phys Med Rehabil. 2021.02; 102 (2): 280-289.

Shinobu Imai, Anna Kiyomi, Munetoshi Sugiura, Kiyohide Fushimi. Healthcare utilization associated with adherence to antibiotics for abdominal surgeries in Japan: cross-sectional analysis of administrative database. Int J Qual Health Care. 2021.02; 33 (1):

Shunichi Otaka, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between parenteral nutrition in the early phase and outcomes in patients with abdominal trauma undergoing emergency laparotomy: A retrospective nationwide study. Clin Nutr ESPEN. 2021.02; 41 371-376.

Shoichiro Hamada, Mikio Nakajima, Richard H Kaszynski, Ryosuke Kumazawa, Hiroki Matui, Kiyohide Fushimi, Hideaki Goto, Yoshihiro Yamaguchi, Hideo Yasunaga. In-hospital mortality among patients with invasive non-group A β-hemolytic Streptococcus treated with clindamycin combination therapy: a nationwide cohort study Acute Med Surg. 2021.02; 8 (1): e634.

Yusuke Okubo, Kenta Horimukai, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between early antibiotic treatment and clinical outcomes in children hospitalized for asthma exacerbation. J Allergy Clin Immunol. 2021.01; 147 (1): 114-122.e14.

Kohei Taniguchi, Hiroyuki Ohbe, Kazuma Yamakawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recombinant Thrombomodulin in Disseminated Intravascular Coagulation Associated with Stage IV Solid Tumors: A Nationwide Observational Study in Japan. Thromb Haemost. 2021.01; 121 (1): 36-45.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Association between body mass index and localization of breast cancer: results from a nationwide inpatient database in Japan. Breast Cancer Res Treat. 2021.01; 185 (1): 175-182.

Ryota Yamagami, Hiroshi Inui, Taisuke Jo, Manabu Kawata, Shuji Taketomi, Kenichi Kono, Kohei Kawaguchi, Shin Sameshima, Tomofumi Kage, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Sakae Tanaka. Unicompartmental knee arthroplasty is associated with lower proportions of surgical site infection compared with total knee arthroplasty: A retrospective nationwide database study. Knee. 2021.01; 28 124-130.

Kenshi Hayashida, Genki Murakami, Shinya Matsuda, Kiyohide Fushimi. History and Profile of Diagnosis Procedure Combination (DPC): Development of a Real Data Collection System for Acute Inpatient Care in Japan. J Epidemiol. 2021.01; 31 (1): 1-11.

Kanako Makito, Hideyuki Mouri, Hiroki Matsui, Nobuaki Michihata, Kiyohide Fushimi, Hideo Yasunaga. Spinal epidural hematoma and abscess after neuraxial anesthesia: a historical cohort study using the Japanese Diagnosis Procedure Combination database. Can J Anaesth. 2021.01; 68 (1): 42-52.

Yohei Hashimoto, Nobuaki Michihata, Hiroki Matsui, Miho Ishimaru, Kiyohide Fushimi, Hideo Yasunaga, Makoto Aihara, Muneyuki Takao, Ryo Obata. Recent trends in vitreoretinal surgery: a nationwide database study in Japan, 2010-2017. Jpn J Ophthalmol. 2021.01; 65 (1): 54-62.

Hiroyuki Ohbe, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Epidemiology of Chronic Critical Illness in Japan: A Nationwide Inpatient Database Study. Crit Care Med. 2021.01; 49 (1): 70-78.

Satoshi Otokita, Hironori Uematsu, Susumu Kunisawa, Noriko Sasaki, Kiyohide Fushimi, Yuichi Imanaka. Impact of rehabilitation start time on functional outcomes after stroke. J Rehabil Med. 2021.01; 53 (1): jrm00145.

Yukihito Sato, Kojiro Morita, Akira Okada, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Factors affecting in-hospital mortality of diabetic ketoacidosis patients: A retrospective cohort study. Diabetes Res Clin Pract. 2021.01; 171 108588.

Daisuke Shigemi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Suicide attempts during pregnancy and perinatal outcomes. J Psychiatr Res. 2021.01; 133 101-105.

Shingo Morishita, Toshitaka Yoshii, Atsushi Okawa, Hiroyuki Inose, Takashi Hirai, Takahisa Ogawa, Kiyohide Fushimi, Takeo Fujiwara. Comparison of Perioperative Complications Between Anterior Fusion and Posterior Fusion for Osteoporotic Vertebral Fractures in Elderly Patients: Propensity Score-Matching Analysis Using Nationwide Inpatient Database. Clin Spine Surg. 2020.12; 33 (10): E586-E592.

Kensuke Shoji, Nobuaki Michihata, Isao Miyairi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recent epidemiology of Pneumocystis pneumonia in Japan. J Infect Chemother. 2020.12; 26 (12): 1260-1264.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Impact of Body Mass Index on Outcomes After Breast Cancer Surgery: Nationwide Inpatient Database Study in Japan. Clin Breast Cancer. 2020.12; 20 (6): e663-e674.

Takanori Suzuki, Nobuaki Michihata, Tetsushi Yoshikawa, Tadayoshi Hata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. High-dose versus low-dose intravenous immunoglobulin for treatment of children with Kawasaki disease weighing 25 kg or more. Eur J Pediatr. 2020.12; 179 (12): 1901-1907.

Naoki Yonezawa, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of Early Tracheostomy on Mortality of Mechanically Ventilated Patients with Guillain-Barré Syndrome: A Nationwide Observational Study. Neurocrit Care. 2020.12; 33 (3): 759-768.

Yoshihisa Miyamoto, Shotaro Aso, Masao Iwagami, Kojiro Morita, Kiyohide Fushimi, Yoshifumi Hamasaki, Masaomi Nangaku, Kent Doi, Hideo Yasunaga. Expanded Indication for Recombinant Tissue Plasminogen Activator from 3 to 4.5 h after Onset of Stroke in Japan. J Stroke Cerebrovasc Dis. 2020.12; 29 (12): 105341.

Mikio Nakajima, Richard H Kaszynski, Hideaki Goto, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Yamaguchi, Hideo Yasunaga. Current trends and outcomes of extracorporeal cardiopulmonary resuscitation for out-of-hospital cardiac arrest in Japan: A nationwide observational study. Resusc Plus. 2020.12; 4 100048.

Yusuke Okubo, Kazuhiro Uda, Noriko Kinoshita, Yuho Horikoshi, Isao Miyairi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. National trends in appropriate antibiotics use among pediatric inpatients with uncomplicated lower respiratory tract infections in Japan. Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy. 2020.11; 26 (11): 1122-1128.

Takaaki Konishi, Michimasa Fujiogi, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Treatments and outcomes of encapsulating peritoneal sclerosis in patients undergoing peritoneal dialysis: 295 cases from a nationwide inpatient database in Japan. Perit Dial Int. 2020.11; 40 (6): 593-599.

Shingo Morishita, Toshitaka Yoshii, Atsushi Okawa, Hiroyuki Inose, Takashi Hirai, Masato Yuasa, Kiyohide Fushimi, Takeo Fujiwara. Risk factors related to perioperative systemic complications and mortality in elderly patients with osteoporotic vertebral fractures-analysis of a large national inpatient database. J Orthop Surg Res. 2020.11; 15 (1): 518.

Kayo Ikeda Kurakawa, Akira Okada, Taisuke Jo, Sachiko Ono, Kazuhiko Bessho, Nobuaki Michihata, Hiroki Matsui, Satoko Yamaguchi, Kiyohide Fushimi, Takashi Kadowaki, Hideo Yasunaga. Effects of Prophylactic Antibiotics on Length of Stay and Total Costs for Pediatric Acute Pancreatitis: A Nationwide Database Study in Japan. Pancreas. 2020.11; 49 (10): 1321-1326.

Kanako Makito, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Volatile versus Total Intravenous Anesthesia for Cancer Prognosis in Patients Having Digestive Cancer Surgery. Anesthesiology. 2020.10; 133 (4): 764-773.

Takahiro Ando, Masahiro Kawashima, Taisuke Jo, Kimihiko Masuda, Yasuhiro Yamauchi, Goh Tanaka, Hidenori Kage, Maho Suzukawa, Hideaki Nagai, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Takahide Nagase. Early Arterial Embolization and Mortality in Mechanically Ventilated Patients With Hemoptysis: A Nationwide Retrospective Cohort Study. Critical care medicine. 2020.10; 48 (10): 1480-1486.

Taku Inohara, Jacqueline Saw, Shun Kohsaka, Keiichi Fukuda, Kiyohide Fushimi. Treatment pattern and outcome of spontaneous coronary artery dissection in Japan. International journal of cardiology. 2020.10; 316 13-18.

Megumi Koizumi, Sayaka Suzuki, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Trends in complications after functional endoscopic sinus surgery in Japan: A comparison with a previous study (2007-2013vs. 2013-2017). Auris, nasus, larynx. 2020.10; 47 (5): 814-819.

Hiroyuki Ohbe, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Stress ulcer prophylaxis plus enteral nutrition versus enteral nutrition alone in critically ill patients at risk for gastrointestinal bleeding: a propensity-matched analysis. Intensive care medicine. 2020.10; 46 (10): 1948-1949.

Kensuke Matsuda, Jo Taisuke, Masashi Miyauchi, Kazuhiro Toyama, Kumi Nakazaki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Mineo Kurokawa. Primary prophylaxis with pegfilgrastim in patients with newly-diagnosed diffuse large B-cell lymphoma: propensity score and instrumental variable analyses. Leuk. Lymphoma. 2020.10; 61 (10): 2435-2441.

Hiroyuki Ohbe, Kazuma Yamakawa, Kohei Taniguchi, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Underlying Disorders, Clinical Phenotypes, and Treatment Diversity among Patients with Disseminated Intravascular Coagulation. JMA J. 2020.10; 3 (4): 321-329.

Takahisa Ogawa, Toshitaka Yoshii, Mutsuko Moriwaki, Shingo Morishita, Yoto Oh, Kazumasa Miyatake, Ara Nazarian, Koichiro Shiba, Atsushi Okawa, Kiyohide Fushimi, Takeo Fujiwara. Association between Hemiarthroplasty vs Total Hip Arthroplasty and Major Surgical Complications among Patients with Femoral Neck Fracture. J Clin Med. 2020.10; 9 (10): 3203.

Yusuke Okubo, Kenta Horimukai, Nobuaki Michihata, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recent Practice Patterns and Variations in Children Hospitalized for Asthma Exacerbation in Japan. Int Arch Allergy Immunol. 2020.10; 181 (12): 926-933.

Kazuma Yamakawa, Hiroyuki Ohbe, Kohei Taniguchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Time Trends of the Outcomes and Treatment Options for Disseminated Intravascular Coagulation: A Nationwide Observational Study in Japan. JMA J. 2020.10; 3 (4): 313-320.

Hiroyuki Tanaka, Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Proportion and risk factors of cholesterol crystal embolization after cardiovascular procedures: a retrospective national database study. Heart Vessels. 2020.09; 35 (9): 1250-1255.

Kunio Tarasawa, Kenji Fujimori, Kiyohide Fushimi. Recombinant Human Soluble Thrombomodulin Contributes to a Reduction In-Hospital Mortality of Acute Cholangitis with Disseminated Intravascular Coagulation: A Propensity Score Analyses of a Japanese Nationwide Database. The Tohoku journal of experimental medicine. 2020.09; 252 (1): 53-61.

Shinichi Tomioka, Megumi Rosenberg, Kiyohide Fushimi, Shinya Matsuda. An analysis of equity in treatment of hip fractures for older patients with dementia in acute care hospitals: observational study using nationwide hospital claims data in Japan. BMC health services research. 2020.09; 20 (1): 830.

Kohei Taniguchi, Hiroyuki Ohbe, Kazuma Yamakawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Antithrombin use and mortality in patients with stage IV solid tumor-associated disseminated intravascular coagulation: a nationwide observational study in Japan. BMC cancer. 2020.09; 20 (1): 867.

Yutaka Kondo, Hiroyuki Ohbe, Hiroki Matsui, Kiyohide Fushimi, Hiroshi Tanaka, Hideo Yasunaga. Proton pump inhibitors versus histamine-2 receptor antagonists for stress ulcer prophylaxis during extracorporeal membrane oxygenation: a propensity score-matched analysis. BMJ open. 2020.09; 10 (9): e037534.

Natsuko Kanazawa, Hiroaki Iijima, Kiyohide Fushimi. In-hospital cardiac rehabilitation and clinical outcomes in patients with acute myocardial infarction after percutaneous coronary intervention: a retrospective cohort study. BMJ open. 2020.09; 10 (9): e039096.

Shunichi Otaka, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early Versus Late Rib Fixation in Patients With Traumatic Rib Fractures: A Nationwide Study. The Annals of thoracic surgery. 2020.09; 110 (3): 988-992.

Hideyuki Mouri, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Impact of glucocorticoid supplementation on reducing perioperative complications in patients on long-term glucocorticoid medication: A propensity score analysis using a nationwide inpatient database. Am. J. Surg.. 2020.09; 220 (3): 648-653.

T Sakamoto, M Fujiogi, A K Lefor, H Matsui, K Fushimi, H Yasunaga. Stent as a bridge to surgery or immediate colectomy for malignant right colonic obstruction: propensity-scored, national database study. Br J Surg. 2020.09; 107 (10): 1354-1362.

Kanako Makito, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Incidences and risk factors for post--dural puncture headache after neuraxial anaesthesia: A national inpatient database study in Japan. Anaesth Intensive Care. 2020.09; 48 (5): 381-388.

Daisuke Takada, Susumu Kunisawa, Takeshi Matsubara, Kiyohide Fushimi, Motoko Yanagita, Yuichi Imanaka. Developing and validating a multivariable prediction model for in-hospital mortality of pneumonia with advanced chronic kidney disease patients: a retrospective analysis using a nationwide database in Japan. Clin. Exp. Nephrol.. 2020.08; 24 (8): 715-724.

Toshitaka Yoshii, Shingo Morishita, Hiroyuki Inose, Masato Yuasa, Takashi Hirai, Atsushi Okawa, Kiyohide Fushimi, Takeo Fujiwara. Comparison of Perioperative Complications in Anterior Decompression With Fusion and Posterior Decompression With Fusion for Cervical Ossification of the Posterior Longitudinal Ligament: Propensity Score Matching Analysis Using a Nation-Wide Inpatient Database. Spine. 2020.08; 45 (16): E1006-E1012.

Yuki Miyamoto, Hiroyuki Ohbe, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. The Effect of Carbazochrome Sodium Sulfonate in Patients with Colonic Diverticular Bleeding: Propensity Score Matching Analyses Using a Nationwide Inpatient Database. Intern. Med.. 2020.08; 59 (15): 1789-1794.

Yoshihisa Miyamoto, Shotaro Aso, Masao Iwagami, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yoshifumi Hamasaki, Masaomi Nangaku, Kent Doi. Association Between IV Thiamine and Mortality in Patients With Septic Shock: A Nationwide Observational Study. Critical care medicine. 2020.08; 48 (8): 1135-1139.

Takeshi Hatachi, Nobuaki Michihata, Muneyuki Takeuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early steroid pulse therapy among children with influenza virus-associated encephalopathy. Journal of intensive care. 2020.08; 8 62.

Kensuke Nakamura, Hiroyuki Ohbe, Hiroki Matsui, Hiromu Naraba, Hidehiko Nakano, Yuji Takahashi, Kiyohide Fushimi, Hideo Yasunaga. Phenytoin versus fosphenytoin for second-line treatment of status epilepticus: propensity score matching analysis using a nationwide inpatient database. Seizure. 2020.08; 80 124-130.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Vasopressin versus epinephrine as adjunct vasopressors for septic shock. Intensive Care Med. 2020.07; 46 (7): 1484-1485.

Akira Endo, Atsushi Shiraishi, Kiyohide Fushimi, Yasuhiro Otomo. Reply to the comment by Osuka et al. J Intensive Care. 2020.07; 8 48.

Kensuke Nakamura, Hiroyuki Ohbe, Hiroki Matsui, Yuji Takahashi, Aiki Marushima, Yoshiaki Inoue, Kiyohide Fushimi, Hideo Yasunaga. Levetiracetam vs. Fosphenytoin for Second-Line Treatment of Status Epilepticus: Propensity Score Matching Analysis Using a Nationwide Inpatient Database. Frontiers in neurology. 2020.07; 11 615.

Atsushi Senda, Akira Endo, Hisateru Tachimori, Kiyohide Fushimi, Yasuhiro Otomo. Early administration of glucocorticoid for thyroid storm: analysis of a national administrative database. Critical care (London, England). 2020.07; 24 (1): 470.

Yui Yamaoka, Takeo Fujiwara, Yoshihisa Fujino, Shinya Matsuda, Kiyohide Fushimi. Response to the Letter to Editor: "Do Inter-Country Differences in the Frequency of Abusive Head Trauma Reflect Different Proportions of Overdiagnosis of Abuse or True Differences in Abuse?" J Epidemiol. 2020.06; 30 (6): 278-279.

Takashi Sakamoto, Michimasa Fujiogi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Timing of cholecystectomy after percutaneous transhepatic gallbladder drainage for acute cholecystitis: a nationwide inpatient database study. HPB (Oxford). 2020.06; 22 (6): 920-926.

Akira Okada, Hayato Yamana, Satoko Yamaguchi, Kayo Ikeda Kurakawa, Hiroki Matsui, Kiyohide Fushimi, Masaomi Nangaku, Takashi Kadowaki, Hideo Yasunaga. Outcomes of lactulose plus branched-chain amino acid infusion and lactulose alone for hepatic encephalopathy: A retrospective cohort study using a national inpatient database. Hepatol. Res.. 2020.06; 50 (6): 693-703.

Tetsuji Minami, Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Postoperative Outcomes after Tubeless, Totally Tubeless, Standard, and Standard with Ureteral Stent Percutaneous Nephrolithotomy: A Nationwide Retrospective Study in Japan. Urol. Int.. 2020.06; 104 (5-6): 445-451.

Ryo Iketani, Shinobu Imai, Hiromasa Horiguchi, Daisuke Furushima, Kiyohide Fushimi, Hiroshi Yamada. Risk stratification for physical morbidity using factors associated with atypical antipsychotic treatment in Parkinson's disease: A retrospective observational study using administrative claims data. J Clin Neurosci. 2020.06; 76 189-194.

Yohei Hashimoto, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Makoto Aihara. Reoperation rates after Ex-PRESS versus trabeculectomy for primary open-angle or normal-tension glaucoma: a national database study in Japan. Eye (Lond). 2020.06; 34 (6): 1069-1076.

Mikio Nakajima, Shotaro Aso, Hiroki Matsui, Richard H Kaszynski, Kiyohide Fushimi, Yoshihiro Yamaguchi, Hideo Yasunaga. Prevalence of myocardial injury requiring percutaneous coronary intervention after acute carbon monoxide poisoning. Eur J Emerg Med. 2020.06; 27 (3): 213-216.

Yujiro Hattori, Shigeyuki Tahara, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Akio Morita. Pituitary surgery's epidemiology using a national inpatient database in Japan. Acta Neurochir (Wien). 2020.06; 162 (6): 1317-1323.

Kohei Hironaka, Shotaro Aso, Masanori Suzuki, Fumihiro Matano, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Akio Morita. Outcomes in Elderly Japanese Patients Treated for Aneurysmal Subarachnoid Hemorrhage: A Retrospective Nationwide Study. J Stroke Cerebrovasc Dis. 2020.06; 29 (6): 104795.

Hiroaki Abe, Masahiko Sumitani, Hiroki Matsui, Shotaro Aso, Reo Inoue, Kiyohide Fushimi, Kanji Uchida, Hideo Yasunaga, Yoshitsugu Yamada. Comparing outcomes after peripheral nerve block versus general anesthesia for lower extremity amputation: a nationwide exploratory retrospective cohort study in Japan. Reg Anesth Pain Med. 2020.06; 45 (6): 399-404.

Akihito Uda, Hiroyo Kuwabara, Sayuri Shimizu, Ryuichi Iwakiri, Kiyohide Fushimi. Optimal use of biologics with endoscopic balloon dilatation for repeated intestinal strictures in Crohn's disease. JGH Open. 2020.06; 4 (3): 532-540.

Takeshi Kitamura, Mikio Nakajima, Iwanari Kawamura, Hiroyuki Ohbe, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Seiji Fukamizu, Hideo Yasunaga. Patient characteristics, procedure details including catheter devices, and complications of catheter ablation for ventricular tachycardia: a nationwide observational study. J Arrhythm. 2020.06; 36 (3): 464-470.

Tatsuya Hosoi, Hayato Yamana, Hiroyuki Tamiya, Hiroki Matsui, Kiyohide Fushimi, Masahiro Akishita, Hideo Yasunaga, Sumito Ogawa. Association between comprehensive geriatric assessment and short-term outcomes among older adult patients with stroke: A nationwide retrospective cohort study using propensity score and instrumental variable methods. EClinicalMedicine. 2020.06; 23 100411.

Yasuhiko Miyakuni, Mikio Nakajima, Hiroyuki Ohbe, Yusuke Sasabuchi, Richard H Kaszynski, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Yamaguchi, Hideo Yasunaga. Angiography versus colonoscopy in patients with severe lower gastrointestinal bleeding: a nation-wide observational study. Acute Med Surg. 2020.06; 7 (1): e533.

Toru Takiguchi, Mikio Nakajima, Hiroyuki Ohbe, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Shiei Kim, Hiroyuki Yokota, Hideo Yasunaga. Vasodilator Therapy and Mortality in Nonocclusive Mesenteric Ischemia: A Nationwide Observational Study. Crit. Care Med.. 2020.05; 48 (5): e356-e361.

Takaaki Konishi, Michimasa Fujiogi, Takayoshi Niwa, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Masahiko Tanabe, Yasuyuki Seto, Hideo Yasunaga. Comparison of outcomes after differentiated thyroid cancer surgery performed with and without energy devices: A population-based cohort study using a nationwide database in Japan. Int J Surg. 2020.05; 77 198-204.

Takashi Sakamoto, Michimasa Fujiogi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Clinical features and outcomes of nonocclusive mesenteric ischemia after cardiac surgery: a retrospective cohort study. Heart Vessels. 2020.05; 35 (5): 630-636.

Daisuke Shigemi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Suicide Attempts Among Pregnant and Postpartum Women in Japan: A Nationwide Retrospective Cohort Study. J Clin Psychiatry. 2020.05; 81 (3): 19m12993.

Shingo Morishita, Toshitaka Yoshii, Atsushi Okawa, Kiyohide Fushimi, Takeo Fujiwara. Comparison of Perioperative Complications Between Anterior Decompression With Fusion and Laminoplasty For Cervical Spondylotic Myelopathy: Propensity Score-matching Analysis Using Japanese Diagnosis Procedure Combination Database. Clin Spine Surg. 2020.04; 33 (3): E101-E107.

Ikuyo Tsutsumi, Susumu Kunisawa, Chikashi Yoshida, Masanori Seki, Takuya Komeno, Kiyohide Fushimi, Satoshi Morita, Yuichi Imanaka. Correction to: Impact of oral voriconazole during chemotherapy for acute myeloid leukemia and myelodysplastic syndrome: a Japanese nationwide retrospective cohort study. Int. J. Clin. Oncol.. 2020.04; 25 (4): 782-783.

Fusao Ikawa, Nobuaki Michihata, Yasuhiko Akiyama, Koji Iihara, Akio Morita, Yoko Kato, Shuhei Yamaguchi, Kaoru Kurisu, Kiyohide Fushimi, Hideo Yasunaga. Propensity Score Matching Analysis for the Patients of Unruptured Cerebral Aneurysm from a Post Hoc Analysis of a Nationwide Database in Japan. World Neurosurg. 2020.04; 136 e371-e379.

Fusao Ikawa, Nobuaki Michihata, Toshinori Matsushige, Masaru Abiko, Daizo Ishii, Jumpei Oshita, Takahito Okazaki, Shigeyuki Sakamoto, Ryota Kurogi, Koji Iihara, Kunihiro Nishimura, Akio Morita, Kiyohide Fushimi, Hideo Yasunaga, Kaoru Kurisu. In-hospital mortality and poor outcome after surgical clipping and endovascular coiling for aneurysmal subarachnoid hemorrhage using nationwide databases: a systematic review and meta-analysis. Neurosurg Rev. 2020.04; 43 (2): 655-667.

Hideki Endo, Kiyohide Fushimi, Yasuhiro Otomo. The off-hour effect in severe trauma and the structure of care delivery among Japanese emergency and critical care centers: A retrospective cohort study. Surgery. 2020.03; 167 (3): 653-660.

Takahiro Kido, Masao Iwagami, Hideo Yasunaga, Toshikazu Abe, Yuki Enomoto, Hiroki Matsui, Kiyohide Fushimi, Hidetoshi Takada, Nanako Tamiya. Outcomes of paediatric out-of-hospital cardiac arrest according to hospital characteristic defined by the annual number of paediatric patients with invasive mechanical ventilation: A nationwide study in Japan. Resuscitation. 2020.03; 148 49-56.

Kensuke Nakamura, Hiroyuki Ohbe, Hiroki Matsui, Yuji Takahashi, Aiki Marushima, Yoshiaki Inoue, Kiyohide Fushimi, Hideo Yasunaga. Changes in Real-world Practice Patterns of Antiepileptic Drugs for Status Epilepticus: A Nationwide Observational Study in Japan. Neurol. Med. Chir. (Tokyo). 2020.03; 60 (3): 156-163.

Yusuke Okubo, Masaru Miura, Tohru Kobayashi, Naho Morisaki, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. The Impact of Changes in Clinical Guideline on Practice Patterns and Healthcare Utilizations for Kawasaki Disease in Japan. Front Pediatr. 2020.03; 8 114.

Takashi Sakamoto, Michimasa Fujiogi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. ASO Author Reflections: Anastomotic Complications are More Prevalent in Laparoscopic Total Gastrectomy than in Open Total Gastrectomy. Ann. Surg. Oncol.. 2020.02; 27 (2): 527-528.

Fusao Ikawa, Nobuaki Michihata, Koji Iihara, Yasuhiko Akiyama, Akio Morita, Kiyohide Fushimi, Hideo Yasunaga, Kaoru Kurisu. Risk Management of Aneurysmal Subarachnoid Hemorrhage by Age and Treatment Method from a Nationwide Database in Japan. World Neurosurg. 2020.02; 134 e55-e67.

Takashi Sakamoto, Michimasa Fujiogi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Short-Term Outcomes of Laparoscopic and Open Total Gastrectomy for Gastric Cancer: A Nationwide Retrospective Cohort Analysis. Ann. Surg. Oncol.. 2020.02; 27 (2): 518-526.

Hideyuki Mouri, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of Sugammadex on Postoperative Myasthenic Crisis in Myasthenia Gravis Patients: Propensity Score Analysis of a Japanese Nationwide Database. Anesth Analg.. 2020.02; 130 (2): 367-373.

Hiroyuki Ohbe, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Differences in effect of early enteral nutrition on mortality among ventilated adults with shock requiring low-, medium-, and high-dose noradrenaline: A propensity-matched analysis. Clin Nutr. 2020.02; 39 (2): 460-467.

Yui Yamaoka, Takeo Fujiwara, Yoshihisa Fujino, Shinya Matsuda, Kiyohide Fushimi. Incidence and Age Distribution of Hospitalized Presumptive and Possible Abusive Head Trauma of Children Under 12 Months Old in Japan. J Epidemiol. 2020.02; 30 (2): 91-97.

Hiroyuki Ohbe, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early enteral nutrition in patients with severe traumatic brain injury: a propensity score-matched analysis using a nationwide inpatient database in Japan. Am. J. Clin. Nutr.. 2020.02; 111 (2): 378-384.

Noriko Morioka, Mutsuko Moriwaki, Jun Tomio, Masayo Kashiwagi, Kiyohide Fushimi, Yasuko Ogata. Structure and process of dementia care and patient outcomes after hip surgery in elderly people with dementia: A retrospective observational study in Japan. Int J Nurs Stud. 2020.02; 102 103470.

Taisuke Jo, Hideo Yasunaga, Yasuhiro Yamauchi, Akihisa Mitani, Yoshihisa Hiraishi, Wakae Hasegawa, Yukiyo Sakamoto, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Inhaled corticosteroid withdrawal may improve outcomes in elderly patients with COPD exacerbation: a nationwide database study. ERJ Open Res. 2020.02; 6 (1):

Kohei Muguruma, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Epidemiology and volume-outcome relationship of extracorporeal membrane oxygenation for respiratory failure in Japan: A retrospective observational study using a national administrative database. Acute Med Surg. 2020.02; 7 (1): e486.

Mikio Nakajima, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Hyperbaric oxygen therapy and mortality from carbon monoxide poisoning: A nationwide observational study. Am J Emerg Med. 2020.02; 38 (2): 225-230.

Yoshito Hirota, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Association between clinic physician workforce and avoidable readmission: a retrospective database research. BMC Health Serv Res. 2020.02; 20 (1): 125.

Itaru Hayakawa, Yusuke Okubo, Hiroki Nariai, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recent treatment patterns and variations for pediatric acute encephalopathy in Japan. Brain Dev.. 2020.01; 42 (1): 48-55.

Yusuke Ugata, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Periprocedural hypotension after conscious sedation versus local anesthesia during defibrillator implantation for left ventricular dysfunction: analysis of a national inpatient database in Japan. Heart Vessels. 2020.01; 35 (1): 118-124.

Yuko Mine, Yoshihisa Fujino, Ken Sabanai, Keiji Muramatsu, Makoto Otani, Tatsuhiko Kubo, Kiyohide Fushimi, Shinya Matsuda. Effectiveness of regional clinical pathways on postoperative length of stay for hip fracture patients: A retrospective observational study using the Japanese Diagnosis Procedure Combination database. J Orthop Sci. 2020.01; 25 (1): 127-131.

Shunsuke Edakubo, Kiyohide Fushimi. Mortality and risk assessment for anorexia nervosa in acute-care hospitals: a nationwide administrative database analysis. BMC Psychiatry. 2020.01; 20 (1): 19.

Shintaro Mandai, Hidehiko Sato, Soichiro Iimori, Shotaro Naito, Haruna Tanaka, Fumiaki Ando, Koichiro Susa, Kiyoshi Isobe, Takayasu Mori, Naohiro Nomura, Eisei Sohara, Tomokazu Okado, Shinichi Uchida, Kiyohide Fushimi, Tatemitsu Rai. Nationwide in-hospital mortality following major fractures among hemodialysis patients and the general population: An observational cohort study. Bone. 2020.01; 130 115122.

Yoshiteru Yano, Nobuo Sakata, Kiyohide Fushimi. Establishing a hospital transfusion management system promotes appropriate clinical use of human albumin in Japan: a nationwide retrospective study. BMC Health Serv Res. 2019.12; 19 (1): 999.

Mikio Nakajima, Morita Kojiro, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Yasuhiko Kaita, Hideaki Goto, Yoshihiro Yamaguchi, Hideo Yasunaga. Effect of high-dose vitamin C therapy on severe burn patients: a nationwide cohort study. Crit Care. 2019.12; 23 (1): 407.

Ryosuke Kumazawa, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between Angiotensin-Converting Enzyme Inhibitors and Post-Stroke Aspiration Pneumonia. J Stroke Cerebrovasc Dis. 2019.12; 28 (12): 104444.

Tadahiro Goto, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hiroyuki Hayashi, Hideo Yasunaga. Machine Learning-Based Prediction Models for 30-Day Readmission after Hospitalization for Chronic Obstructive Pulmonary Disease. COPD. 2019.12; 16 (5-6): 338-343.

Hideki Endo, Kiyohide Fushimi, Yasuhiro Otomo. Volume-outcome relationship in severe operative trauma surgery: A retrospective cohort study using a Japanese nationwide administrative database. Surgery. 2019.12; 166 (6): 1105-1110.

Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Intensive In-Hospital Rehabilitation After Hip Fracture Surgery and Activities of Daily Living in Patients With Dementia: Retrospective Analysis of a Nationwide Inpatient Database. Arch Phys Med Rehabil. 2019.12; 100 (12): 2301-2307.

Fusao Ikawa, Nobuaki Michihata, Yasuhiko Akiyama, Koji Iihara, Fumihiro Matano, Akio Morita, Yoko Kato, Koji Iida, Kaoru Kurisu, Kiyohide Fushimi, Hideo Yasunaga. Treatment Risk for Elderly Patients with Unruptured Cerebral Aneurysm from a Nationwide Database in Japan. World Neurosurg. 2019.12; 132 e89-e98.

Shinobu Imai, Hayato Yamana, Norihiko Inoue, Manabu Akazawa, Hiromasa Horiguchi, Kiyohide Fushimi, Kiyoshi Migita, Hiroshi Yatsuhashi, Masaya Sugiyama, Masashi Mizokami. Validity of administrative database detection of previously resolved hepatitis B virus in Japan. J. Med. Virol.. 2019.11; 91 (11): 1944-1948.

Yoshihisa Miyamoto, Masao Iwagami, Shotaro Aso, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yoshifumi Hamasaki, Masaomi Nangaku, Kent Doi. Association between intravenous contrast media exposure and non-recovery from dialysis-requiring septic acute kidney injury: a nationwide observational study. Intensive Care Med. 2019.11; 45 (11): 1570-1579.

Hiroyuki Ohbe, Shunsuke Isogai, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Extracorporeal membrane oxygenation improves outcomes of accidental hypothermia without vital signs: A nationwide observational study. Resuscitation. 2019.11; 144 27-32.

Hiroyuki Ohbe, Shunsuke Isogai, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Treatment with Antithrombin or Thrombomodulin and Mortality from Heatstroke-Induced Disseminated Intravascular Coagulation: A Nationwide Observational Study. Semin Thromb Hemost.. 2019.11; 45 (8): 760-766.

Takahiro Kinoshita, Hiroyuki Ohbe, Hiroki Matsui, Kiyohide Fushimi, Hiroshi Ogura, Hideo Yasunaga. Effect of tranexamic acid on mortality in patients with haemoptysis: a nationwide study. Crit Care. 2019.11; 23 (1): 347.

Ikuyo Tsutsumi, Susumu Kunisawa, Chikashi Yoshida, Masanori Seki, Takuya Komeno, Kiyohide Fushimi, Satoshi Morita, Yuichi Imanaka. Impact of oral voriconazole during chemotherapy for acute myeloid leukemia and myelodysplastic syndrome: a Japanese nationwide retrospective cohort study. Int. J. Clin. Oncol.. 2019.11; 24 (11): 1449-1458.

Tetsuji Minami, Mph, Hayato Yamana, Mph Ph D, Daisuke Shigemi, Mph, Hiroki Matsui Mph, Kiyohide Fushimi, Ph D, Hideo Yasunaga, Ph D. Artificial colloids versus human albumin for the treatment of ovarian hyperstimulation syndrome: A retrospective cohort study. Int J Reprod Biomed (Yazd). 2019.11; 17 (10): 709-716.

Tetsuya Ishimaru, Michimasa Fujiogi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hiroshi Kawashima, Jun Fujishiro, Hideo Yasunaga. Impact of congenital heart disease on outcomes after primary repair of esophageal atresia: a retrospective observational study using a nationwide database in Japan. Pediatr. Surg. Int.. 2019.10; 35 (10): 1077-1083.

Seiko Bun, Susumu Kunisawa, Noriko Sasaki, Kiyohide Fushimi, Kimikazu Matsumoto, Akimasa Yamatani, Yuichi Imanaka. Analysis of concordance with antiemetic guidelines in pediatric, adolescent, and young adult patients with cancer using a large-scale administrative database. Cancer Med. 2019.10; 8 (14): 6243-6249.

Iwanari Kawamura, Mikio Nakajima, Takeshi Kitamura, Richard H Kaszynski, Rintaro Hojo, Hiroyuki Ohbe, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Seiji Fukamizu, Hideo Yasunaga. Patient characteristics and in-hospital complications of subcutaneous implantable cardioverter-defibrillator for Brugada syndrome in Japan. J Arrhythm. 2019.09; 35 (6): 842-847.

Ryo Iketani, Shinobu Imai, Hiromasa Horiguchi, Daisuke Furushima, Kiyohide Fushimi, Hiroshi Yamada. Comparison of the association of risperidone and quetiapine with deteriorating performance in walking and dressing in subjects with Parkinson's disease: a retrospective cohort study using administrative claims data. Int Clin Psychopharmacol. 2019.09; 34 (5): 234-240.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi, Hideo Yasunaga. In-hospital Takotsubo syndrome versus in-hospital acute myocardial infarction among patients admitted for non-cardiac diseases: a nationwide inpatient database study. Heart Vessels. 2019.09; 34 (9): 1479-1490.

Seiko Mizuno, Susumu Kunisawa, Noriko Sasaki, Kiyohide Fushimi, Yuichi Imanaka. Correction: Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan. PLoS ONE. 2019.09; 14 (9): e0222125.

Hiroyuki Ohbe, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early Enteral Nutrition in Patients Undergoing Sustained Neuromuscular Blockade: A Propensity-Matched Analysis Using a Nationwide Inpatient Database. Crit. Care Med.. 2019.08; 47 (8): 1072-1080.

Michimasa Fujiogi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Jun Fujishiro. Early Outcomes of Laparoscopic Versus Open Surgery for Urachal Remnant Resection in Children: A Retrospective Analysis Using a Nationwide Inpatient Database in Japan. J Laparoendosc Adv Surg Tech A. 2019.08; 29 (8): 1067-1072.

Kojiro Morita, Hiroki Matsui, Nobuaki Michihata, Kiyohide Fushimi, Hideo Yasunaga. Association of Early Systemic Corticosteroid Therapy with Mortality in Patients with Stevens-Johnson Syndrome or Toxic Epidermal Necrolysis: A Retrospective Cohort Study Using a Nationwide Claims Database. Am J Clin Dermatol. 2019.08; 20 (4): 579-592.

Megumi Koizumi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Outcomes of endoscopic sinus surgery for sinusitis-induced intracranial abscess in patients undergoing neurosurgery. Neurosurg Focus. 2019.08; 47 (2): E12.

Daisuke Shigemi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Therapeutic Impact of Initial Treatment for Chlamydia trachomatis Among Patients With Pelvic Inflammatory Disease: A Retrospective Cohort Study Using a National Inpatient Database in Japan. Clin. Infect. Dis.. 2019.07; 69 (2): 316-322.

Mikio Nakajima, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Yamaguchi, Hideo Yasunaga. Disaster-related carbon monoxide poisoning after the Great East Japan Earthquake, 2011: a nationwide observational study. Acute Med Surg. 2019.07; 6 (3): 294-300.

Shunsuke Araki, Shinichi Tomioka, Makoto Otani, Shutaro Suga, Shun Ichikawa, Shinya Matsuda, Kiyohide Fushimi, Koichi Kusuhara, Akira Shirahata. Incidence and In-Hospital Mortality of Neonatal Disseminated Intravascular Coagulation in Japan: An Observational Study of a Nationwide Hospital Claims Database. J. UOEH. 2019.07; 41 (3): 295-302.

Daisuke Shigemi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Laparoscopic Compared With Open Surgery for Severe Pelvic Inflammatory Disease and Tubo-Ovarian Abscess. Obstet Gynecol. 2019.06; 133 (6): 1224-1230.

Yoshihisa Miyamoto, Masao Iwagami, Shotaro Aso, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yoshifumi Hamasaki, Masaomi Nangaku, Kent Doi. Temporal change in characteristics and outcomes of acute kidney injury on renal replacement therapy in intensive care units: analysis of a nationwide administrative database in Japan, 2007-2016. Crit Care. 2019.05; 23 (1): 172.

Daisuke Shinjo, Hisateru Tachimori, Keiko Maruyama-Sakurai, Tetsu Ohnuma, Kenji Fujimori, Kiyohide Fushimi. Risk factors for early unplanned readmission in patients with bipolar disorder: A retrospective observational study. Gen Hosp Psychiatry. 2019.05; 58 51-58.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Systemic glucocorticoids plus cyclophosphamide for acute exacerbation of idiopathic pulmonary fibrosis: a retrospective nationwide study. Sarcoidosis Vasc Diffuse Lung Dis. 2019.05; 36 (2): 116-123.

Hiroji Shinkawa, Hideo Yasunaga, Kiyoshi Hasegawa, Hiroki Matsui, Nobuaki Michihata, Kiyohide Fushimi, Norihiro Kokudo. Mortality and morbidity after pancreatoduodenectomy in patients undergoing hemodialysis: Analysis using a national inpatient database. Surgery. 2019.04; 165 (4): 747-750.

A Tsuchiya, H Yasunaga, Y Tsutsumi, T Kawahara, H Matsui, K Fushimi. Nationwide observational study of mortality from complicated intra-abdominal infections and the role of bacterial cultures. Br J Surg. 2019.04; 106 (5): 606-615.

Yusuke Okubo, Itaru Hayakawa, Hiroki Nariai, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recent practice patterns in diagnostic procedures anticonvulsants, and antibiotics for children hospitalized with febrile seizure. Seizure. 2019.04; 67 52-56.

Shingo Morishita, Toshitaka Yoshii, Atsushi Okawa, Kiyohide Fushimi, Takeo Fujiwara. Perioperative complications of anterior decompression with fusion versus laminoplasty for the treatment of cervical ossification of the posterior longitudinal ligament: propensity score matching analysis using a nation-wide inpatient database. Spine J. 2019.04; 19 (4): 610-616.

Jung-Ho Shin, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Effects of preoperative oral management by dentists on postoperative outcomes following esophagectomy: Multilevel propensity score matching and weighting analyses using the Japanese inpatient database. Medicine (Baltimore). 2019.04; 98 (17): e15376.

Michimasa Fujiogi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Jun Fujishiro. Outcomes following laparoscopic versus open surgery for pediatric inguinal hernia repair: Analysis using a national inpatient database in Japan. J. Pediatr. Surg.. 2019.03; 54 (3): 577-581.

Takeshi Oichi, Yasushi Oshima, Hiroki Matsui, Kiyohide Fushimi, Sakae Tanaka, Hideo Yasunaga. Can Elective Spine Surgery Be Performed Safely Among Nonagenarians?: Analysis of a National Inpatient Database in Japan. Spine. 2019.03; 44 (5): E273-E281.

Yoshihisa Hiraishi, Taisuke Jo, Nobuaki Michihata, Wakae Hasegawa, Yukiyo Sakamoto, Hirokazu Urushiyama, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase, Hideo Yasunaga, Yasuhiro Yamauchi. Hospital Volume and Mortality following Diagnostic Bronchoscopy in Lung Cancer Patients: Data from a National Inpatient Database in Japan. Respiration. 2019.03; 97 (3): 264-272.

Daisuke Shinjo, Kimikazu Matsumoto, Keita Terashima, Tetsuya Takimoto, Tetsu Ohnuma, Takashi Noguchi, Kiyohide Fushimi. Volume effect in paediatric brain tumour resection surgery: analysis of data from the Japanese national inpatient database. Eur. J. Cancer. 2019.03; 109 111-119.

Masaya Enomoto, Akira Endo, Hiroshi Yatsushige, Kiyohide Fushimi, Yasuhiro Otomo. Clinical Effects of Early Edaravone Use in Acute Ischemic Stroke Patients Treated by Endovascular Reperfusion Therapy. Stroke. 2019.03; 50 (3): 652-658.

Daisuke Shigemi, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Safety of Laparoscopic Surgery for Benign Diseases during Pregnancy: A Nationwide Retrospective Cohort Study. J Minim Invasive Gynecol. 2019.03; 26 (3): 501-506.

Norihiko Inoue, Kiyohide Fushimi. Adjunctive Corticosteroids decreased the risk of mortality of non-HIV Pneumocystis Pneumonia. Int. J. Infect. Dis.. 2019.02; 79 109-115.

Hiroyuki Ohbe, Shunsuke Isogai, Mikio Nakajima, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Physician-manned prehospital emergency care in tertiary emergency centers in Japan. Acute Med Surg. 2019.02; 6 (2): 165-172.

Koshi Ota, Yusuke Sasabuchi, Hiroki Matsui, Taisuke Jo, Kiyohide Fushimi, Hideo Yasunaga. Age distribution and seasonality in acute eosinophilic pneumonia: analysis using a national inpatient database. BMC Pulm Med. 2019.02; 19 (1): 38.

Daisuke Takada, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Previously-initiated hemodialysis as prognostic factor for in-hospital mortality in pneumonia patients with stage 5 chronic kidney disease: Retrospective database study of Japanese hospitals. PLoS ONE. 2019.02; 14 (2): e0213105.

Megumi Koizumi, Miho Ishimaru, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba, Hideo Yasunaga. Tranexamic acid and post-tonsillectomy hemorrhage: propensity score and instrumental variable analyses. Eur Arch Otorhinolaryngol. 2019.01; 276 (1): 249-254.

Hideyuki Mouri, Taisuke Jo, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Continuous Neuromuscular Blockade and Mortality in Subjects With Exacerbation of Idiopathic Interstitial Pneumonias. Respir Care. 2019.01; 64 (1): 34-39.

Akira Endo, Atsushi Shiraishi, Yasuhiro Otomo, Kiyohide Fushimi, Kiyoshi Murata. Volume-outcome relationship on survival and cost benefits in severe burn injury: a retrospective analysis of a Japanese nationwide administrative database. J Intensive Care. 2019.01; 7 7.

Akira Endo, Atsushi Shiraishi, Kiyohide Fushimi, Kiyoshi Murata, Yasuhiro Otomo. Increased Severe Trauma Patient Volume is Associated With Survival Benefit and Reduced Total Health Care Costs: A Retrospective Observational Study Using a Japanese Nationwide Administrative Database. Ann. Surg.. 2018.12; 268 (6): 1091-1096.

Michimasa Fujiogi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Jun Fujishiro. Postoperative Small Bowel Obstruction Following Laparoscopic or Open Fundoplication in Children: A Retrospective Analysis Using a Nationwide Database. World J Surg. 2018.12; 42 (12): 4112-4117.

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba. Trend in otolaryngological surgeries in an era of super-aging: Descriptive statistics using a Japanese inpatient database. Auris Nasus Larynx. 2018.12; 45 (6): 1239-1244.

Taisuke Jo, Nobuaki Michihata, Hayato Yamana, Yusuke Sasabuchi, Hiroki Matsui, Hirokazu Urushiyama, Akihisa Mitani, Yasuhiro Yamauchi, Kiyohide Fushimi, Takahide Nagase, Hideo Yasunaga. Reduction in exacerbation of COPD in patients of advanced age using the Japanese Kampo medicine Dai-kenchu-to: a retrospective cohort study. Int J Chron Obstruct Pulmon Dis. 2018.12; 14 129-139.

Takeshi Aoyama, Susumu Kunisawa, Kiyohide Fushimi, Teiji Sawa, Yuichi Imanaka. Comparison of surgical and conservative treatment outcomes for type a aortic dissection in elderly patients. J Cardiothorac Surg. 2018.12; 13 (1): 129.

Manabu Kawata, Yusuke Sasabuchi, Shuji Taketomi, Hiroshi Inui, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Sakae Tanaka. Atopic dermatitis is a novel demographic risk factor for surgical site infection after anterior cruciate ligament reconstruction. Knee Surg Sports Traumatol Arthrosc. 2018.12; 26 (12): 3699-3705.

Asuka Tsuchiya, Hayato Yamana, Takuya Kawahara, Yusuke Tsutsumi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Tracheostomy and mortality in patients with severe burns: A nationwide observational study. Burns. 2018.12; 44 (8): 1954-1961.

Yoshitaka Kinoshita, Toru Sugihara, Hideo Yasunaga, Hiroki Matsui, Akira Ishikawa, Tetsuya Fujimura, Hiroshi Fukuhara, Yoshitaka Ishibashi, Kiyohide Fushimi, Yukio Homma. Hospital-Volume Effects on Perioperative Outcomes in Peritoneal Dialysis Catheter Implantation: Analysis of 2,505 Cases. Perit Dial Int. 2018.11; 38 (6): 419-423.

Hiroaki Kikuchi, Eiichiro Kanda, Takayasu Mori, Hidehiko Sato, Soichiro Iimori, Naohiro Nomura, Shotaro Naito, Eisei Sohara, Tomokazu Okado, Shinichi Uchida, Kiyohide Fushimi, Tatemitsu Rai. Short-term prognosis of emergently hospitalized dialysis-independent chronic kidney disease patients: A nationwide retrospective cohort study in Japan. PLoS ONE. 2018.11; 13 (11): e0208258.

Takeshi Oichi, Yasushi Oshima, Hirotaka Chikuda, Junichi Ohya, Hiroki Matsui, Kiyohide Fushimi, Sakae Tanaka, Hideo Yasunaga. In-hospital complication rate following microendoscopic versus open lumbar laminectomy: a propensity score-matched analysis. Spine J. 2018.10; 18 (10): 1815-1821.

A Endo, A Shiraishi, K Fushimi, K Murata, Y Otomo. Outcomes of patients receiving a massive transfusion for major trauma. Br J Surg. 2018.10; 105 (11): 1426-1434.

Yusuke Sasabuchi, Hiroki Matsui, Alan Kawarai Lefor, Kiyohide Fushimi, Hideo Yasunaga. Timing of surgery for hip fractures in the elderly: A retrospective cohort study. Injury. 2018.10; 49 (10): 1848-1854.

Yuko Sato, Mitsunori Miyashita, Kazuki Sato, Kenji Fujimori, Koichi Benjamin Ishikawa, Hiromasa Horiguchi, Kiyohide Fushimi, Chikashi Ishioka. End-of-life care for cancer patients in Japanese acute care hospitals: A nationwide retrospective administrative database survey. Jpn. J. Clin. Oncol. 2018.10; 48 (10): 877-883.

Naoyoshi Nagata, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Kazuhiro Watanabe, Junichi Akiyama, Naomi Uemura, Ryota Niikura. Therapeutic endoscopy-related GI bleeding and thromboembolic events in patients using warfarin or direct oral anticoagulants: results from a large nationwide database analysis. Gut. 2018.10; 67 (10): 1805-1812.

Hirokazu Urushiyama, Taisuke Jo, Hideo Yasunaga, Nobuaki Michihata, Hiroki Matsui, Wakae Hasegawa, Hideyuki Takeshima, Yukiyo Sakamoto, Yoshihisa Hiraishi, Akihisa Mitani, Kiyohide Fushimi, Takahide Nagase, Yasuhiro Yamauchi. Oral fluorouracil vs vinorelbine plus cisplatin as adjuvant chemotherapy for stage II-IIIA non-small cell lung cancer: Propensity score-matched and instrumental variable analyses. Cancer Med. 2018.10; 7 (10): 4863-4869.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of cyclosporine A on mortality after acute exacerbation of idiopathic pulmonary fibrosis. J Thorac Dis. 2018.09; 10 (9): 5275-5282.

Kazuhiko Nakaharai, Kojiro Morita, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early prophylactic antibiotics for severe acute pancreatitis: A population-based cohort study using a nationwide database in Japan. J. Infect. Chemother. 2018.09; 24 (9): 753-758.

Hiroyuki Ohbe, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Cholinergic Crisis Caused by Cholinesterase Inhibitors: a Retrospective Nationwide Database Study. J Med Toxicol. 2018.09; 14 (3): 237-241.

Mikayo Toba, Mutsuko Moriwaki, Noriko Oshima, Yoshibumi Aiso, Mari Shima, Yoko Nukui, Satoshi Obayashi, Kiyohide Fushimi. Prevention of surgical site infection via antibiotic administration according to guidelines after gynecological surgery. J. Obstet. Gynaecol. Res. 2018.09; 44 (9): 1800-1807.

Taisuke Jo, Hideo Yasunaga, Nobuaki Michihata, Yusuke Sasabuchi, Wakae Hasegawa, Hideyuki Takeshima, Yukiyo Sakamoto, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase, Yasuhiro Yamauchi. Influence of Parkinsonism on outcomes of elderly pneumonia patients. Parkinsonism Relat. Disord. 2018.09; 54 25-29.

Akira Endo, Atsushi Shiraishi, Kiyohide Fushimi, Kiyoshi Murata, Yasuhiro Otomo. Impact of continuous regional arterial infusion in the treatment of acute necrotizing pancreatitis: analysis of a national administrative database. J. Gastroenterol. 2018.09; 53 (9): 1098-1106.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Akira Kohyama, Kiyohide Fushimi, Hideo Yasunaga. Clinical features and peripartum outcomes in pregnant women with cardiac disease: a nationwide retrospective cohort study in Japan. Heart Vessels. 2018.08; 33 (8): 918-930.

Hiroyuki Ohbe, Taisuke Jo, Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Early enteral nutrition for cardiogenic or obstructive shock requiring venoarterial extracorporeal membrane oxygenation: a nationwide inpatient database study. Intensive Care Med. 2018.08; 44 (8): 1258-1265.

Hirokazu Urushiyama, Taisuke Jo, Hideo Yasunaga, Nobuaki Michihata, Hayato Yamana, Hiroki Matsui, Wakae Hasegawa, Yoshihisa Hiraishi, Akihisa Mitani, Kiyohide Fushimi, Takahide Nagase, Yasuhiro Yamauchi. Effect of Hangeshashin-To (Japanese Herbal Medicine Tj-14) on Tolerability of Irinotecan: Propensity Score and Instrumental Variable Analyses. J Clin Med. 2018.08; 7 (9):

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Mizuo Ando, Tatsuya Yamasoba. Postoperative mechanical bowel obstruction after pharyngolaryngectomy for hypopharyngeal cancer: Retrospective analysis using a Japanese inpatient database. Head Neck. 2018.07; 40 (7): 1548-1554.

Yusuke Okubo, Nobuaki Michihata, Naho Morisaki, Robert P Sundel, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association Between Dose of Glucocorticoids and Coronary Artery Lesions in Kawasaki Disease. Arthritis Care Res (Hoboken). 2018.07; 70 (7): 1052-1057.

Hayato Yamana, Mariko Kodan, Sachiko Ono, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Tomoaki Imamura, Hideo Yasunaga. Hospital quality reporting and improvement in quality of care for patients with acute myocardial infarction. BMC Health Serv Res. 2018.07; 18 (1): 523.

Akihisa Mitani, Taisuke Jo, Hideo Yasunaga, Yukiyo Sakamoto, Wakae Hasegawa, Hirokazu Urushiyama, Yasuhiro Yamauchi, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Venous thromboembolic events in patients with lung cancer treated with cisplatin-based versus carboplatin/nedaplatin-based chemotherapy. Anticancer Drugs. 2018.07; 29 (6): 560-564.

Fumino Tadokoro, Kojiro Morita, Nobuaki Michihata, Kiyohide Fushimi, Hideo Yasunaga. Association between sugammadex and anaphylaxis in pediatric patients: A nested case-control study using a national inpatient database. Paediatr Anaesth. 2018.07; 28 (7): 654-659.

Michimasa Fujiogi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga, Jun Fujishiro. Clinical features and practice patterns of gastroschisis: a retrospective analysis using a Japanese national inpatient database. Pediatr. Surg. Int.. 2018.07; 34 (7): 727-733.

Hiroji Shinkawa, Hideo Yasunaga, Kiyoshi Hasegawa, Hiroki Matsui, Kiyohide Fushimi, Nobuaki Michihata, Norihiro Kokudo. Mortality and morbidity after hepatic resection in patients undergoing hemodialysis: analysis of a national inpatient database in Japan. Surgery. 2018.06; 163 (6): 1234-1237.

Kazuhiro Uda, Yusuke Okubo, Kensuke Shoji, Isao Miyairi, Naho Morisaki, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Trends of neuraminidase inhibitors use in children with influenza related respiratory infections. Pediatr. Pulmonol. 2018.06; 53 (6): 802-808.

Akira Endo, Atsushi Shiraishi, Kiyohide Fushimi, Kiyoshi Murata, Yasuhiro Otomo. Comparative effectiveness of elemental formula in the early enteral nutrition management of acute pancreatitis: a retrospective cohort study. Ann Intensive Care. 2018.06; 8 (1): 69.

Takeshi Umegaki, Susumu Kunisawa, Yasufumi Nakajima, Takahiko Kamibayashi, Kiyohide Fushimi, Yuichi Imanaka. Comparison of In-hospital Outcomes Between Transcatheter and Surgical Aortic Valve Replacement in Patients with Aortic Valve Stenosis: A Retrospective Cohort Study Using Administrative Data. J. Cardiothorac. Vasc. Anesth. 2018.06; 32 (3): 1281-1288.

Nobuo Sakata, Yasuyuki Okumura, Kiyohide Fushimi, Miharu Nakanishi, Asao Ogawa. Dementia and Risk of 30-Day Readmission in Older Adults After Discharge from Acute Care Hospitals. J Am Geriatr Soc. 2018.05; 66 (5): 871-878.

Yusuke Sasabuchi, Hiroki Matsui, Alan Kawarai Lefor, Taisuke Jo, Nobuaki Michihata, Kiyohide Fushimi, Hideo Yasunaga. Japanese Herbal Kampo Hochu-Ekki-To or Juzen-Taiho-To after Surgery for Hip Fracture Does Not Reduce Infectious Complications. Evid Based Complement Alternat Med. 2018.04; 2018 (8620198): 6.

Yusuke Okubo, Naho Morisaki, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Dose-dependent relationships between weight status and clinical outcomes among infants hospitalized with respiratory syncytial virus infections. Pediatr. Pulmonol. 2018.04; 53 (4): 461-466.

Eishi Uechi, Masato Okada, Kiyohide Fushimi. Effect of plasma exchange on in-hospital mortality in patients with pulmonary hemorrhage secondary to antineutrophil cytoplasmic antibody-associated vasculitis: A propensity-matched analysis using a nationwide administrative database. PLoS ONE. 2018.04; 13 (4): e0196009.

Yuki Taniguchi, Takeshi Oichi, Junichi Ohya, Hirotaka Chikuda, Yasushi Oshima, Yoshitaka Matsubayashi, Hiroki Matsui, Kiyohide Fushimi, Sakae Tanaka, Hideo Yasunaga. In-hospital mortality and morbidity of pediatric scoliosis surgery in Japan: Analysis using a national inpatient database. Medicine (Baltimore). 2018.04; 97 (14): e0277.

Manabu Kawata, Yusuke Sasabuchi, Shuji Taketomi, Hiroshi Inui, Hiroki Matsui, Kiyohide Fushimi, Hirotaka Chikuda, Hideo Yasunaga, Sakae Tanaka. Annual trends in arthroscopic meniscus surgery: Analysis of a national database in Japan. PLoS ONE. 2018.04; 13 (4): e0194854.

H Abe, M Sumitani, K Uchida, T Ikeda, H Matsui, K Fushimi, H Yasunaga, Y Yamada. Association between mode of anaesthesia and severe maternal morbidity during admission for scheduled Caesarean delivery: a nationwide population-based study in Japan, 2010-2013. Br J Anaesth. 2018.04; 120 (4): 779-789.

Mikio Nakajima, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Clinical features and outcomes of tetanus: Analysis using a National Inpatient Database in Japan. J Crit Care. 2018.04; 44 388-391.

Hiroko Okinaga, Hideo Yasunaga, Kiyoshi Hasegawa, Kiyohide Fushimi, Norihiro Kokudo. Short-Term Outcomes following Hepatectomy in Elderly Patients with Hepatocellular Carcinoma: An Analysis of 10,805 Septuagenarians and 2,381 Octo- and Nonagenarians in Japan. Liver Cancer. 2018.03; 7 (1): 55-64.

Hiraku Funakoshi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Variation in Patient Backgrounds, Practice Patterns, and Outcomes of High-Risk Pulmonary Embolism in Japan. Int Heart J. 2018.03; 59 (2): 367-371.

Tomoki Wada, Hideo Yasunaga, Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Naoto Morimura. Development and validation of an ICD-10-based disability predictive index for patients admitted to hospitals with trauma. Injury. 2018.03; 49 (3): 556-563.

Yusuke Okubo, Nobuaki Michihata, Naho Morisaki, Kazuhiro Uda, Isao Miyairi, Yuichi Ogawa, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recent trends in practice patterns and impact of corticosteroid use on pediatric Mycoplasma pneumoniae-related respiratory infections. Respir Investig. 2018.03; 56 (2): 158-165.

Tetsu Ohnuma, Daisuke Shinjo, Alan M Brookhart, Kiyohide Fushimi. Predictors associated with unplanned hospital readmission of medical and surgical intensive care unit survivors within 30 days of discharge. J Intensive Care. 2018.03; 6 14.

Yusuke Sawada, Yusuke Sasabuchi, Yasuo Nakahara, Hiroki Matsui, Kiyohide Fushimi, Nobuhiko Haga, Hideo Yasunaga. Early Rehabilitation and In-Hospital Mortality in Intensive Care Patients With Community-Acquired Pneumonia. Am. J. Crit. Care. 2018.03; 27 (2): 97-103.

Asuka Tsuchiya, Hideo Yasunaga, Yusuke Tsutsumi, Hiroki Matsui, Kiyohide Fushimi. Mortality and Morbidity After Hartmann's Procedure Versus Primary Anastomosis Without a Diverting Stoma for Colorectal Perforation: A Nationwide Observational Study. World J Surg. 2018.03; 42 (3): 866-875.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi, Hideo Yasunaga. Clinical characteristics of patients with Takotsubo syndrome diagnosed without coronary artery evaluation: A retrospective nationwide study. J Cardiol. 2018.03; 71 (3): 268-276.

Chie Koizumi, Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. In-Hospital Mortality for Hepatic Portal Venous Gas: Analysis of 1590 Patients Using a Japanese National Inpatient Database. World J Surg. 2018.03; 42 (3): 816-822.

Shintaro Mandai, Hidehiko Sato, Soichiro Iimori, Shotaro Naito, Takayasu Mori, Daiei Takahashi, Moko Zeniya, Naohiro Nomura, Eisei Sohara, Tomokazu Okado, Shinichi Uchida, Kiyohide Fushimi, Tatemitsu Rai. Dialysis Case Volume Associated With In-Hospital Mortality in Maintenance Dialysis Patients. Kidney Int Rep. 2018.03; 3 (2): 356-363.

Tomoki Wada, Hideo Yasunaga, Kent Doi, Hiroki Matsui, Kiyohide Fushimi, Yoichi Kitsuta, Susumu Nakajima. Impact of hospital volume on mortality in patients with severe torso injury. J. Surg. Res. 2018.02; 222 1-9.

Yusuke Okubo, Nobuaki Michihata, Kazuhiro Uda, Naho Morisaki, Isao Miyairi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Dose-response relationship between weight status and clinical outcomes in pediatric influenza-related respiratory infections. Pediatr. Pulmonol. 2018.02; 53 (2): 218-223.

Yasuko Abe, Kentaro Shimokado, Kiyohide Fushimi. Donepezil is associated with decreased in-hospital mortality as a result of pneumonia among older patients with dementia: A retrospective cohort study. Geriatr Gerontol Int. 2018.02; 18 (2): 269-275.

Kazuaki Uda, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Preoperative short-term plus postoperative physical therapy versus postoperative physical therapy alone for patients undergoing lung cancer surgery: retrospective analysis of a nationwide inpatient database. Eur J Cardiothorac Surg. 2018.02; 53 (2): 336-341.

Keishi Oda, Kazuhiro Yatera, Yoshihisa Fujino, Takashi Kido, Tetsuya Hanaka, Konomi Sennari, Kiyohide Fushimi, Shinya Matsuda, Hiroshi Mukae. Respiratory comorbidities and risk of mortality in hospitalized patients with idiopathic pulmonary fibrosis. Respir Investig. 2018.01; 56 (1): 64-71.

Seiko Mizuno, Susumu Kunisawa, Noriko Sasaki, Kiyohide Fushimi, Yuichi Imanaka. Effects of night-time and weekend admissions on in-hospital mortality in acute myocardial infarction patients in Japan. PLoS ONE. 2018.01; 13 (1): e0191460.

Yoshifumi Mizobuchi, Makoto Ohtani, Junichiro Satomi, Kiyohide Fushimi, Shinya Matsuda, Shinji Nagahiro. The Current Status of Microvascular Decompression for the Treatment of Trigeminal Neuralgia in Japan: An Analysis of 1619 Patients Using the Japanese Diagnosis Procedure Combination Database. Neurol. Med. Chir. (Tokyo). 2018.01; 58 (1): 10-16.

Keiji Muramatsu, Yoshihisa Fujino, Tatsuhiko Kubo, Makoto Otani, Kiyohide Fushimi, Shinya Matsuda. Efficacy of Antimicrobial Catheters for Prevention of Catheter-Associated Urinary Tract Infection in Acute Cerebral Infarction. J Epidemiol. 2018.01; 28 (1): 54-58.

Hiroyuki Toi, Keita Kinoshita, Satoshi Hirai, Hiroki Takai, Keijiro Hara, Nobuhisa Matsushita, Shunji Matsubara, Makoto Otani, Keiji Muramatsu, Shinya Matsuda, Kiyohide Fushimi, Masaaki Uno. Present epidemiology of chronic subdural hematoma in Japan: analysis of 63,358 cases recorded in a national administrative database. J. Neurosurg. 2018.01; 128 (1): 222-228.

Yusuke Okubo, Nobuaki Michihata, Naho Morisaki, Mayumi Hangai, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Recent trends in practice patterns and comparisons between immunoglobulin and corticosteroid in pediatric immune thrombocytopenia. Int. J. Hematol. 2018.01; 107 (1): 75-82.

Yusuke Okubo, Nobuaki Michihata, Koichi Yoshida, Naho Morisaki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Impact of pediatric obesity on acute asthma exacerbation in Japan. Pediatr Allergy Immunol. 2017.12; 28 (8): 763-767.

Masato Tashiro, Kiyohide Fushimi, Kei Kawano, Takahiro Takazono, Tomomi Saijo, Kazuko Yamamoto, Shintaro Kurihara, Yoshifumi Imamura, Taiga Miyazaki, Katsunori Yanagihara, Hiroshi Mukae, Koichi Izumikawa. Adjunctive corticosteroid therapy for inpatients with Mycoplasma pneumoniae pneumonia. BMC Pulm Med. 2017.12; 17 (1): 219.

Sandeep Shakya, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. In-hospital complications after implantation of cardiac implantable electronic devices: Analysis of a national inpatient database in Japan. J Cardiol. 2017.11; 70 (5): 405-410.

Masaya Sato, Ryosuke Tateishi, Hideo Yasunaga, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Kazuhiko Koike. Mortality and hemorrhagic complications associated with radiofrequency ablation for treatment of hepatocellular carcinoma in patients on hemodialysis for end-stage renal disease: A nationwide survey. J. Gastroenterol. Hepatol. 2017.11; 32 (11): 1873-1878.

Masato Tashiro, Kiyohide Fushimi, Kei Kawano, Takahiro Takazono, Tomomi Saijo, Kazuko Yamamoto, Shintaro Kurihara, Yoshifumi Imamura, Taiga Miyazaki, Katsunori Yanagihara, Hiroshi Mukae, Koichi Izumikawa. Comparison of Efficacy of Antimicrobial Agents Among Hospitalized Patients With Mycoplasma pneumoniae Pneumonia in Japan During Large Epidemics of Macrolide-Resistant M. pneumoniae Infections: A Nationwide Observational Study. Clin. Infect. Dis. 2017.11; 65 (11): 1837-1842.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi, Hideo Yasunaga. Seasonal variation in patient characteristics and in-hospital outcomes of Takotsubo syndrome: a nationwide retrospective cohort study in Japan. Heart Vessels. 2017.10; 32 (10): 1271-1276.

Manabu Kawata, Yusuke Sasabuchi, Hiroshi Inui, Shuji Taketomi, Hiroki Matsui, Kiyohide Fushimi, Hirotaka Chikuda, Hideo Yasunaga, Sakae Tanaka. Annual trends in knee arthroplasty and tibial osteotomy: Analysis of a national database in Japan. Knee. 2017.10; 24 (5): 1198-1205.

Daisuke Shinjo, Kiyohide Fushimi. The degree of severity and trends in hospital standardized mortality ratios in Japan between 2008 and 2012: a retrospective observational study. Int J Qual Health Care. 2017.10; 29 (5): 705-712.

Taisuke Jo, Hideo Yasunaga, Yusuke Sasabuchi, Nobuaki Michihata, Kojiro Morita, Yasuhiro Yamauchi, Wakae Hasegawa, Hideyuki Takeshima, Yukiyo Sakamoto, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Association between dementia and discharge status in patients hospitalized with pneumonia. BMC Pulm Med. 2017.10; 17 (1): 128.

Kojiro Morita, Hiroki Matsui, Hayato Yamana, Kiyohide Fushimi, Tomoaki Imamura, Hideo Yasunaga. Association between advanced practice nursing and 30-day mortality in mechanically ventilated critically ill patients: A retrospective cohort study. J Crit Care. 2017.10; 41 209-215.

Hayato Yamana, Mutsuko Moriwaki, Hiromasa Horiguchi, Mariko Kodan, Kiyohide Fushimi, Hideo Yasunaga. Validity of diagnoses, procedures, and laboratory data in Japanese administrative data. J Epidemiol. 2017.10; 27 (10): 476-482.

Hirokazu Urushiyama, Taisuke Jo, Hideo Yasunaga, Yasuhiro Yamauchi, Hiroki Matsui, Wakae Hasegawa, Hideyuki Takeshima, Yoshihisa Hiraishi, Akihisa Mitani, Kiyohide Fushimi, Takahide Nagase. Adjuvant chemotherapy versus chemoradiotherapy for small cell lung cancer with lymph node metastasis: a retrospective observational study with use of a national database in Japan. BMC Cancer. 2017.09; 17 (1): 613.

Motoko Sano, Kiyohide Fushimi. Association of Palliative Care Consultation With Reducing Inpatient Chemotherapy Use in Elderly Patients With Cancer in Japan: Analysis Using a Nationwide Administrative Database. Am J Hosp Palliat Care. 2017.08; 34 (7): 685-691.

Tomoki Wada, Hideo Yasunaga, Hayato Yamana, Hiroki Matsui, Takehiro Matsubara, Kiyohide Fushimi, Susumu Nakajima. Development and validation of a new ICD-10-based trauma mortality prediction scoring system using a Japanese national inpatient database. Inj. Prev. 2017.08; 23 (4): 263-267.

Masao Iwagami, Hideo Yasunaga, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Eisei Noiri, Masaomi Nangaku, Kent Doi. Impact of end-stage renal disease on hospital outcomes among patients admitted to intensive care units: A retrospective matched-pair cohort study. Nephrology (Carlton). 2017.08; 22 (8): 617-623.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi, Hideo Yasunaga. In-hospital management and outcomes in patients with peripartum cardiomyopathy: a descriptive study using a national inpatient database in Japan. Heart Vessels. 2017.08; 32 (8): 944-951.

Wakae Hasegawa, Yasuhiro Yamauchi, Hideo Yasunaga, Hideyuki Takeshima, Yukiyo Sakamoto, Taisuke Jo, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Prognostic nomogram for inpatients with asthma exacerbation. BMC Pulm Med. 2017.08; 17 (1): 108.

Daisuke Shinjo, Hisateru Tachimori, Keiko Sakurai, Tetsu Ohnuma, Kenji Fujimori, Kiyohide Fushimi. Factors affecting prolonged length of stay in psychiatric patients in Japan: A retrospective observational study. Psychiatry Clin. Neurosci. 2017.08; 71 (8): 542-553.

M Sato, R Tateishi, H Yasunaga, H Matsui, K Fushimi, H Ikeda, Y Yatomi, K Koike. Association between hospital volume and in-hospital mortality following radiofrequency ablation for hepatocellular carcinoma. BJS Open. 2017.07; 1 (2): 50-54.

Tomoki Wada, Hideo Yasunaga, Kent Doi, Hiroki Matsui, Kiyohide Fushimi, Yoichi Kitsuta, Susumu Nakajima. Relationship between hospital volume and outcomes in patients with traumatic brain injury: A retrospective observational study using a national inpatient database in Japan. Injury. 2017.07; 48 (7): 1423-1431.

Toru Sugihara, Hideo Yasunaga, Hiroki Matsui, Go Nagao, Akira Ishikawa, Tetsuya Fujimura, Hiroshi Fukuhara, Kiyohide Fushimi, Makoto Ohori, Yukio Homma. Accessibility to surgical robot technology and prostate-cancer patient behavior for prostatectomy. Jpn. J. Clin. Oncol. 2017.07; 47 (7): 647-651.

Shinichiro Kobori, Tatsuhiko Kubo, Makoto Otani, Keiji Muramatsu, Yoshihisa Fujino, Hiroaki Adachi, Hiromasa Horiguchi, Kiyohide Fushimi, Shinya Matsuda. Coexisting infectious diseases on admission as a risk factor for mechanical ventilation in patients with Guillain-Barré syndrome. J Epidemiol. 2017.07; 27 (7): 311-316.

Y Sasabuchi, H Yasunaga, H Matsui, A K Lefor, K Fushimi, M Sanui. Epidural analgesia is infrequently used in patients with acute pancreatitis : a retrospective cohort study. Acta Gastroenterol. Belg. 2017.06; 80 (3): 381-384.

Hironori Uematsu, Kazuto Yamashita, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Estimating the disease burden of methicillin-resistant Staphylococcus aureus in Japan: Retrospective database study of Japanese hospitals. PLoS ONE. 2017.06; 12 (6): e0179767.

Akahito Sako, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Hidetaka Hamasaki, Hisayuki Katsuyama, Tetsuro Tsujimoto, Atsushi Goto, Hidekatsu Yanai. Hospitalization with hypoglycemia in patients without diabetes mellitus: A retrospective study using a national inpatient database in Japan, 2008-2012. Medicine (Baltimore). 2017.06; 96 (25): e7271.

Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Association between Nurse Staffing and In-Hospital Bone Fractures: A Retrospective Cohort Study. Health Serv Res. 2017.06; 52 (3): 1005-1023.

Yukiyo Sakamoto, Yasuhiro Yamauchi, Hideo Yasunaga, Hideyuki Takeshima, Wakae Hasegawa, Taisuke Jo, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Development of a nomogram for predicting in-hospital mortality of patients with exacerbation of chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2017.05; 12 1605-1611.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Naoto Yokogawa, Kiyohide Fushimi, Hideo Yasunaga. Treatments and in-hospital mortality in acute myocardial infarction patients with rheumatoid arthritis: a nationwide retrospective cohort study in Japan. Clin. Rheumatol. 2017.05; 36 (5): 995-1004.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Resuscitative endovascular balloon occlusion of the aorta or resuscitative thoracotomy with aortic clamping for noncompressible torso hemorrhage: A retrospective nationwide study. J Trauma Acute Care Surg. 2017.05; 82 (5): 910-914.

Hiroki Matsui, Taisuke Jo, Kiyohide Fushimi, Hideo Yasunaga. Outcomes after early and delayed rehabilitation for exacerbation of chronic obstructive pulmonary disease: a nationwide retrospective cohort study in Japan. Respir. Res. 2017.04; 18 (1): 68.

Takeshi Oichi, Hirotaka Chikuda, Junichi Ohya, Ryo Ohtomo, Kojiro Morita, Hiroki Matsui, Kiyohide Fushimi, Sakae Tanaka, Hideo Yasunaga. Mortality and morbidity after spinal surgery in patients with Parkinson's disease: a retrospective matched-pair cohort study. Spine J. 2017.04; 17 (4): 531-537.

Yoshifumi Mizobuchi, Keiji Muramatsu, Makoto Ohtani, Junichiro Satomi, Kiyohide Fushimi, Shinya Matsuda, Shinji Nagahiro. The Current Status of Microvascular Decompression for the Treatment of Hemifacial Spasm in Japan: An Analysis of 2907 Patients Using the Japanese Diagnosis Procedure Combination Database. Neurol. Med. Chir. (Tokyo). 2017.04; 57 (4): 184-190.

Masato Takeuchi, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi. Pediatric urolithiasis associated with acute gastroenteritis: an inpatient database study in Japan. Eur. J. Pediatr. 2017.04; 176 (4): 501-507.

Hiroyuki Odagiri, Hideo Yasunaga, Hiroki Matsui, Shigeru Matsui, Kiyohide Fushimi, Mitsuru Kaise. Hospital volume and adverse events following esophageal endoscopic submucosal dissection in Japan. Endoscopy. 2017.04; 49 (4): 321-326.

Yusuke Sasabuchi, Hiroki Matsui, Hideo Yasunaga, Kiyohide Fushimi. Increase in avoidable hospital admissions after the Great East Japan Earthquake. J Epidemiol Community Health. 2017.03; 71 (3): 248-252.

Masaya Sato, Ryosuke Tateishi, Hideo Yasunaga, Hiromasa Horiguchi, Hiroki Matsui, Haruhiko Yoshida, Kiyohide Fushimi, Kazuhiko Koike. The ADOPT-LC score: a novel predictive index of in-hospital mortality of cirrhotic patients following surgical procedures, based on a national survey. Hepatol. Res. 2017.03; 47 (3): E35-E43.

Yosuke Ono, Sachiko Ono, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yuji Tanaka. Clinical features and practice patterns of treatment for adrenal crisis: a nationwide cross-sectional study in Japan. Eur. J. Endocrinol. 2017.03; 176 (3): 329-337.

Yosuke Ono, Sachiko Ono, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yuji Tanaka. Clinical characteristics and outcomes of myxedema coma: Analysis of a national inpatient database in Japan. J Epidemiol. 2017.03; 27 (3): 117-122.

Maiko Yagi, Hideo Yasunaga, Hiroki Matsui, Kojiro Morita, Kiyohide Fushimi, Masashi Fujimoto, Teruyuki Koyama, Junko Fujitani. Impact of Rehabilitation on Outcomes in Patients With Ischemic Stroke: A Nationwide Retrospective Cohort Study in Japan. Stroke. 2017.03; 48 (3): 740-746.

Miho Ishimaru, Sachiko Ono, Sayaka Suzuki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Artificial nutrition dependence after cetuximab versus cisplatin combined with radiotherapy for advanced head and neck cancer: A propensity score-matched analysis. Head Neck. 2017.02; 39 (2): 320-325.

Takashi Tagami, Hiroki Matsui, Yuuta Moroe, Reo Fukuda, Ami Shibata, Chie Tanaka, Kyoko Unemoto, Kiyohide Fushimi, Hideo Yasunaga. Antithrombin use and 28-day in-hospital mortality among severe-burn patients: an observational nationwide study. Ann Intensive Care. 2017.02; 7 (1): 18.

Yukiyo Sakamoto, Yasuhiro Yamauchi, Hideo Yasunaga, Hideyuki Takeshima, Wakae Hasegawa, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Guidelines-concordant empiric antimicrobial therapy and mortality in patients with severe community-acquired pneumonia requiring mechanical ventilation. Respir Investig. 2017.01; 55 (1): 39-44.

Takahiro Inoue, Hiroyo Kuwabara, Kiyohide Fushimi. Regional Variation in the Use of Percutaneous Coronary Intervention in Japan. Circ. J. 2017.01; 81 (2): 195-198.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Motoyuki Hisagi, Kiyohide Fushimi. Factors affecting in-hospital mortality and likelihood of undergoing surgical resection in patients with primary cardiac tumors. J Cardiol. 2017.01; 69 (1): 287-292.

Takashi Tagami, Hiroki Matsui, Saori Ishinokami, Masao Oyanagi, Akiko Kitahashi, Reo Fukuda, Kyoko Unemoto, Kiyohide Fushimi, Hideo Yasunaga. Amiodarone or nifekalant upon hospital arrival for refractory ventricular fibrillation after out-of-hospital cardiac arrest. Resuscitation. 2016.12; 109 127-132.

Tomoki Wada, Hideo Yasunaga, Hiromasa Horiguchi, Kiyohide Fushimi, Takehiro Matsubara, Susumu Nakajima, Naoki Yahagi. Ozagrel for Patients With Noncardioembolic Ischemic Stroke: A Propensity Score-Matched Analysis. J Stroke Cerebrovasc Dis. 2016.12; 25 (12): 2828-2837.

Ryota Niikura, Hideo Yasunaga, Atsuo Yamada, Hiroki Matsui, Kiyohide Fushimi, Yoshihiro Hirata, Kazuhiko Koike. Factors predicting adverse events associated with therapeutic colonoscopy for colorectal neoplasia: a retrospective nationwide study in Japan. Gastrointest. Endosc. 2016.12; 84 (6): 971-982.e6.

Hironori Uematsu, Kazuto Yamashita, Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. The economic burden of methicillin-resistant Staphylococcus aureus in community-onset pneumonia inpatients. Am J Infect Control. 2016.12; 44 (12): 1628-1633.

Tsuyoshi Hamada, Hideo Yasunaga, Yousuke Nakai, Hiroyuki Isayama, Hiroki Matsui, Kiyohide Fushimi, Kazuhiko Koike. No weekend effect on outcomes of severe acute pancreatitis in Japan: data from the diagnosis procedure combination database. J. Gastroenterol. 2016.11; 51 (11): 1063-1072.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi, Hideo Yasunaga. Atrial natriuretic peptide therapy and in-hospital mortality in acute myocardial infarction patients undergoing percutaneous coronary intervention. Int. J. Cardiol. 2016.11; 222 163-170.

Susumu Kunisawa, Kiyohide Fushimi, Yuichi Imanaka. Reducing Length of Hospital Stay Does Not Increase Readmission Rates in Early-Stage Gastric, Colon, and Lung Cancer Surgical Cases in Japanese Acute Care Hospitals. PLoS ONE. 2016.11; 11 (11): e0166269.

Ryuji Sasaki, Hideo Yasunaga, Hiroki Matsui, Nobuaki Michihata, Kiyohide Fushimi. Hospital Volume and Mortality in Mechanically Ventilated Children: Analysis of a National Inpatient Database in Japan. Pediatr Crit Care Med. 2016.11; 17 (11): 1041-1044.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. The Effect of Intraaortic Balloon Pumping Under Venoarterial Extracorporeal Membrane Oxygenation on Mortality of Cardiogenic Patients: An Analysis Using a Nationwide Inpatient Database. Crit. Care Med. 2016.11; 44 (11): 1974-1979.

Yasuo Nakahara, Hideo Yasunaga, Haruhi Inokuchi, Naoshi Ogata, Hiromasa Horiguchi, Shinya Matsuda, Kiyohide Fushimi, Nobuhiko Haga. Mortality-Reducing Effect of Rehabilitation for COPD: Observational Propensity-Matched Cohort Study Using a Nationwide Database. Respir Care. 2016.11; 61 (11): 1497-1504.

Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Hospital volume and mortality due to preterm patent ductus arteriosus. Pediatr Int. 2016.11; 58 (11): 1171-1175.

Maiko Yagi, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Masashi Fujimoto, Teruyuki Koyama, Junko Fujitani. Effect of early rehabilitation on activities of daily living in patients with aspiration pneumonia. Geriatr Gerontol Int. 2016.11; 16 (11): 1181-1187.

Takashi Tagami, Hiroki Matsui, Masamune Kuno, Yuuta Moroe, Junya Kaneko, Kyoko Unemoto, Kiyohide Fushimi, Hideo Yasunaga. Early antibiotics administration during targeted temperature management after out-of-hospital cardiac arrest: a nationwide database study. BMC Anesthesiol. 2016.10; 16 (1): 89.

Takumi Matsumoto, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Naohiro Izawa, Tetsuro Yasui, Yuho Kadono, Sakae Tanaka. Time trends and risk factors for perioperative complications in total ankle arthroplasty: retrospective analysis using a national database in Japan. BMC Musculoskelet Disord. 2016.10; 17 (1): 450.

Takashi Tagami, Hiroki Matsui, Chie Tanaka, Junya Kaneko, Masamune Kuno, Saori Ishinokami, Kyoko Unemoto, Kiyohide Fushimi, Hideo Yasunaga. Amiodarone Compared with Lidocaine for Out-Of-Hospital Cardiac Arrest with Refractory Ventricular Fibrillation on Hospital Arrival: a Nationwide Database Study. Cardiovasc Drugs Ther. 2016.10; 30 (5): 485-491.

Hayato Yamana, Hiromasa Horiguchi, Kiyohide Fushimi, Hideo Yasunaga. Comparison of Procedure-Based and Diagnosis-Based Identifications of Severe Sepsis and Disseminated Intravascular Coagulation in Administrative Data. J Epidemiol. 2016.10; 26 (10): 530-537.

Seiko Mizuno, Susumu Kunisawa, Noriko Sasaki, Kiyohide Fushimi, Yuichi Imanaka. In-hospital mortality and treatment patterns in acute myocardial infarction patients admitted during national cardiology meeting dates. Int. J. Cardiol. 2016.10; 220 929-936.

Nobuo Sakata, Sayuri Shimizu, Fumio Hirano, Kiyohide Fushimi. Epidemiological study of adult-onset Still's disease using a Japanese administrative database. Rheumatol. Int. 2016.10; 36 (10): 1399-1405.

Hayato Yamana, Hiroki Matsui, Takashi Tagami, Junko Hirashima, Kiyohide Fushimi, Hideo Yasunaga. De-escalation versus continuation of empirical antimicrobial therapy in community-acquired pneumonia. J. Infect. 2016.10; 73 (4): 314-325.

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yuki Saito, Tatsuya Yamasoba. Cerebral infarction after intraarterial and intravenous chemoradiotherapy for head and neck cancer: A retrospective analysis using a Japanese inpatient database. Head Neck. 2016.09; 38 (9): 1354-1358.

Yasuhiro Yamauchi, Hideo Yasunaga, Yukiyo Sakamoto, Wakae Hasegawa, Hideyuki Takeshima, Hirokazu Urushiyama, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Mortality associated with bone fractures in COPD patients. Int J Chron Obstruct Pulmon Dis. 2016.09; 11 2335-2340.

Tetsu Ohnuma, Daisuke Shinjo, Kiyohide Fushimi. Hospital mortality of patients aged 80 and older after surgical repair for type A acute aortic dissection in Japan. Medicine (Baltimore). 2016.08; 95 (31): e4408.

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba. Factors associated with prolonged duration of post-tympanoplasty local treatment in adult chronic otitis media patients: A retrospective observational study using a Japanese inpatient database. Auris Nasus Larynx. 2016.08; 43 (4): 377-381.

Hironori Uematsu, Susumu Kunisawa, Kazuto Yamashita, Kiyohide Fushimi, Yuichi Imanaka. Impact of weekend admission on in-hospital mortality in severe community-acquired pneumonia patients in Japan. Respirology. 2016.07; 21 (5): 905-910.

Toshiaki Isogai, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi, Hideo Yasunaga. Early β-blocker use and in-hospital mortality in patients with Takotsubo cardiomyopathy. Heart. 2016.07; 102 (13): 1029-1035.

Yusuke Sasabuchi, Hiroki Matsui, Alan K Lefor, Kiyohide Fushimi, Hideo Yasunaga. Risks and Benefits of Stress Ulcer Prophylaxis for Patients With Severe Sepsis. Crit. Care Med. 2016.07; 44 (7): e464-e469.

Michio Naganuma, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Clinical features of isolated dissections of abdominal aortic branches. Heart Vessels. 2016.06; 31 (6): 1006-1009.

Miho Ishimaru, Sachiko Ono, Sayaka Suzuki, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Risk Factors for Free Flap Failure in 2,846 Patients With Head and Neck Cancer: A National Database Study in Japan. J. Oral Maxillofac. Surg. 2016.06; 74 (6): 1265-1270.

Yasuhiro Yamauchi, Hideo Yasunaga, Wakae Hasegawa, Yukiyo Sakamoto, Hideyuki Takeshima, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Effect of outpatient therapy with inhaled corticosteroids on decreasing in-hospital mortality from pneumonia in patients with COPD. Int J Chron Obstruct Pulmon Dis. 2016.06; 11 1403-1411.

Keishi Oda, Kazuhiro Yatera, Yoshihisa Fujino, Hiroshi Ishimoto, Hiroyuki Nakao, Tetsuya Hanaka, Takaaki Ogoshi, Takashi Kido, Kiyohide Fushimi, Shinya Matsuda, Hiroshi Mukae. Efficacy of concurrent treatments in idiopathic pulmonary fibrosis patients with a rapid progression of respiratory failure: an analysis of a national administrative database in Japan. BMC Pulm Med. 2016.06; 16 (1): 91.

Yutaka Yamaji, Hideo Yasunaga, Yoshihiro Hirata, Atsuo Yamada, Shuntaro Yoshida, Hiromasa Horiguchi, Kiyohide Fushimi, Kazuhiko Koike. Association Between Colorectal Cancer and Atherosclerotic Diseases: A Study Using a National Inpatient Database in Japan. Dig. Dis. Sci. 2016.06; 61 (6): 1677-1685.

Sachiko Ono, Miho Ishimaru, Yosuke Ono, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Impact of Body Mass Index on the Outcomes of Open Reduction for Mandibular Fractures. J. Oral Maxillofac. Surg. 2016.05; 74 (5): 1024:e1-1024:e5.

Ryo Momosaki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Masahiro Abo. Proton Pump Inhibitors versus Histamine-2 Receptor Antagonists and Risk of Pneumonia in Patients with Acute Stroke. J Stroke Cerebrovasc Dis. 2016.05; 25 (5): 1035-1040.

Junko Hirashima, Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Effect of intravenous magnesium sulfate on mortality in patients with severe acute asthma. Respirology. 2016.05; 21 (4): 668-673.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Kiyohide Fushimi. Relationship between hospital volume and major cardiac complications of rotational atherectomy: A nationwide retrospective cohort study in Japan. J Cardiol. 2016.05; 67 (5): 442-448.

Momosaki Ryo, Yasunaga Hideo, Matsui Hiroki, Horiguchi Hiromasa, Fushimi Kiyohide, Abo Masahiro. Predictive factors for oral intake after aspiration pneumonia in older adults. Geriatr Gerontol Int. 2016.05; 16 (5): 556-560.

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Tatsuya Yamasoba. Pharyngocutaneous fistula and delay in free oral feeding after pharyngolaryngectomy for hypopharyngeal cancer. Head Neck. 2016.04; 38 (S1): E625-E630.

Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. In-hospital mortality and successful weaning from venoarterial extracorporeal membrane oxygenation: analysis of 5,263 patients using a national inpatient database in Japan. Crit Care. 2016.04; 20 (1): 80.

Y Sasabuchi, H Yasunaga, H Matsui, A K Lefor, K Fushimi. Prolonged propofol infusion for mechanically ventilated children. Anaesthesia. 2016.04; 71 (4): 424-428.

Yusuke Tsuda, Hideo Yasunaga, Hiromasa Horiguchi, Kiyohide Fushimi, Hirotaka Kawano, Sakae Tanaka. Complications and Postoperative Mortality Rate After Surgery for Pathological Femur Fracture Related to Bone Metastasis: Analysis of a Nationwide Database. Ann. Surg. Oncol. 2016.03; 23 (3): 801-810.

Hanako Ishikawa, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Norito Kawakami. Differences in cancer stage, treatment and in-hospital mortality between patients with and without schizophrenia: retrospective matched-pair cohort study. Br J Psychiatry. 2016.03; 208 (3): 239-244.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Changes in Therapeutic Hypothermia and Coronary Intervention Provision and In-Hospital Mortality of Patients With Out-of-Hospital Cardiac Arrest: A Nationwide Database Study. Crit. Care Med. 2016.03; 44 (3): 488-495.

Ryo Momosaki, Hideo Yasunaga, Wataru Kakuda, Hiroki Matsui, Kiyohide Fushimi, Masahiro Abo. Very Early versus Delayed Rehabilitation for Acute Ischemic Stroke Patients with Intravenous Recombinant Tissue Plasminogen Activator: A Nationwide Retrospective Cohort Study. Cerebrovasc. Dis. 2016.03; 42 (1-2): 41-48.

Masato Tashiro, Kiyohide Fushimi, Takahiro Takazono, Shintaro Kurihara, Taiga Miyazaki, Misuzu Tsukamoto, Katsunori Yanagihara, Hiroshi Mukae, Takayoshi Tashiro, Shigeru Kohno, Koichi Izumikawa. A mortality prediction rule for non-elderly patients with community-acquired pneumonia. BMC Pulm Med. 2016.03; 16 39.

Junichi Ohya, Yasushi Oshima, Hirotaka Chikuda, Takeshi Oichi, Hiroki Matsui, Kiyohide Fushimi, Sakae Tanaka, Hideo Yasunaga. Does the microendoscopic technique reduce mortality and major complications in patients undergoing lumbar discectomy? A propensity score-matched analysis using a nationwide administrative database. Neurosurg Focus. 2016.02; 40 (2): E5.

Masao Iwagami, Hideo Yasunaga, Eisei Noiri, Hiromasa Horiguchi, Kiyohide Fushimi, Takehiro Matsubara, Naoki Yahagi, Masaomi Nangaku, Kent Doi. Potential Survival Benefit of Polymyxin B Hemoperfusion in Septic Shock Patients on Continuous Renal Replacement Therapy: A Propensity-Matched Analysis. Blood Purif. 2016.02; 42 (1): 9-17.

Yosuke Ono, Sachiko Ono, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yuji Tanaka. Factors Associated With Mortality of Thyroid Storm: Analysis Using a National Inpatient Database in Japan. Medicine (Baltimore). 2016.02; 95 (7): e2848.

Tsuyoshi Hamada, Hideo Yasunaga, Yousuke Nakai, Hiroyuki Isayama, Hiroki Matsui, Kiyohide Fushimi, Kazuhiko Koike. Interstitial lung disease associated with gemcitabine: A Japanese retrospective cohort study. Respirology. 2016.02; 21 (2): 338-343.

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Yuki Saito, Tatsuya Yamasoba. Factors Associated With Neck Hematoma After Thyroidectomy: A Retrospective Analysis Using a Japanese Inpatient Database. Medicine (Baltimore). 2016.02; 95 (7): e2812.

Tomoki Wada, Hideo Yasunaga, Hiromasa Horiguchi, Takehiro Matsubara, Kiyohide Fushimi, Susumu Nakajima, Naoki Yahagi. Outcomes of Argatroban Treatment in Patients With Atherothrombotic Stroke: Observational Nationwide Study in Japan. Stroke. 2016.02; 47 (2): 471-476.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Prophylactic Antibiotics May Improve Outcome in Patients With Severe Burns Requiring Mechanical Ventilation: Propensity Score Analysis of a Japanese Nationwide Database. Clin. Infect. Dis. 2016.01; 62 (1): 60-66.

So Kato, Hirotaka Chikuda, Junichi Ohya, Takeshi Oichi, Hiroki Matsui, Kiyohide Fushimi, Katsushi Takeshita, Sakae Tanaka, Hideo Yasunaga. Risk of infectious complications associated with blood transfusion in elective spinal surgery-a propensity score matched analysis. Spine J. 2016.01; 16 (1): 55-60.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Motoyuki Hisagi, Kiyohide Fushimi. Clinical Practice Patterns in Constrictive Pericarditis Patients With Heart Failure: A Retrospective Cohort Study Using a National Inpatient Database in Japan. Clin Cardiol. 2015.12; 38 (12): 740-746.

Takahiro Inoue, Kiyohide Fushimi. Weekend versus Weekday Admission and In-Hospital Mortality from Ischemic Stroke in Japan. J Stroke Cerebrovasc Dis. 2015.12; 24 (12): 2787-2792.

Yusuke Sasabuchi, Hideo Yasunaga, Hiroki Matsui, Alan K Lefor, Kiyohide Fushimi, Masamitsu Sanui. Carperitide Increases the Need for Renal Replacement Therapy After Cardiovascular Surgery. J. Cardiothorac. Vasc. Anesth.. 2015.12; 29 (6): 1426-1431.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Low-dose corticosteroid treatment and mortality in refractory abdominal septic shock after emergency laparotomy. Ann Intensive Care. 2015.12; 5 (1): 32.

Tomoki Wada, Hideo Yasunaga, Ryota Inokuchi, Hiroki Matsui, Takehiro Matsubara, Yoshihiro Ueda, Masataka Gunshin, Takeshi Ishii, Kent Doi, Yoichi Kitsuta, Susumu Nakajima, Kiyohide Fushimi, Naoki Yahagi. Effectiveness of surgical rib fixation on prolonged mechanical ventilation in patients with traumatic rib fractures: A propensity score-matched analysis. J Crit Care. 2015.12; 30 (6): 1227-1231.

Kojiro Morita, Yusuke Sasabuchi, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Outcomes after early or late timing of surgery for infective endocarditis with ischaemic stroke: a retrospective cohort study. Interact Cardiovasc Thorac Surg. 2015.11; 21 (5): 604-609.

Akiko Kanehara, Hayato Yamana, Hideo Yasunaga, Hiroki Matsui, Shuntaro Ando, Tsuyoshi Okamura, Yousuke Kumakura, Kiyohide Fushimi, Kiyoto Kasai. Psychiatric intervention and repeated admission to emergency centres due to drug overdose. BJPsych Open. 2015.11; 1 (2): 158-163.

Tsuyoshi Hamada, Hideo Yasunaga, Yousuke Nakai, Hiroyuki Isayama, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Kazuhiko Koike. Bleeding after endoscopic sphincterotomy or papillary balloon dilation among users of antithrombotic agents. Endoscopy. 2015.11; 47 (11): 997-1004.

Daisuke Shinjo, Kiyohide Fushimi. Preoperative factors affecting cost and length of stay for isolated off-pump coronary artery bypass grafting: hierarchical linear model analysis. BMJ Open. 2015.11; 5 (11): e008750.

D Shinjo, K Fushimi. Trends in Hospital Standardized Mortality Ratios in Japan. Value Health. 2015.11; 18 (7): A555.

Hiroyuki Tamiya, Hideo Yasunaga, Hiroki Matusi, Kiyohide Fushimi, Masahiro Akishita, Sumito Ogawa. Comparison of short-term mortality and morbidity between parenteral and enteral nutrition for adults without cancer: a propensity-matched analysis using a national inpatient database. Am. J. Clin. Nutr.. 2015.11; 102 (5): 1222-1228.

Ono Sachiko, Ishimaru Miho, Matsui Hiroki, Fushimi Kiyohide, Yasunaga Hideo. Effect of Hospital Volume on Outcomes of Surgery for Cleft Lip and Palate. J Oral Maxillofac Surg. 2015.11; 73 (11): 2219-2224.

Hiroyuki Odagiri, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Toshiro Iizuka, Mitsuru Kaise. Difference in Outcomes of Rectal Foreign Bodies between Males and Females: A Retrospective Analysis of a National Inpatient Database in Japan. Digestion. 2015.10; 92 (3): 165-170.

Hiroki Aizawa, Shinobu Imai, Kiyohide Fushimi. Factors associated with 30-day readmission of patients with heart failure from a Japanese administrative database. BMC Cardiovasc Disord. 2015.10; 15 134.

Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Variation in Risk-Standardized Mortality of Stroke among Hospitals in Japan. PLoS ONE. 2015.10; 10 (10): e0139216.

Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Clinical Features of Adult Patients Admitted to Pediatric Wards in Japan. J Adolesc Health. 2015.10; 57 (4): 421-424.

Nobuaki Michihata, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Guideline-Concordant Treatment of Kawasaki Disease With Immunoglobulin and Aspirin and the Incidence of Coronary Artery Aneurysm. Clin Pediatr (Phila). 2015.10; 54 (11): 1076-1080.

Michio Naganuma, Hiroki Matsui, Jun Koizumi, Kiyohide Fushimi, Hideo Yasunaga. Short-term outcomes following elective transcatheter arterial embolization for splenic artery aneurysms: data from a nationwide administrative database. Acta Radiol Open. 2015.09; 4 (9): 2047981615574354.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Validation of the prognostic burn index: a nationwide retrospective study. Burns. 2015.09; 41 (6): 1169-1175.

Hayato Yamana, Hiroki Matsui, Yusuke Sasabuchi, Kiyohide Fushimi, Hideo Yasunaga. Categorized diagnoses and procedure records in an administrative database improved mortality prediction. J Clin Epidemiol. 2015.09; 68 (9): 1028-1035.

Sayaka Suzuki, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Tatsuya Yamasoba. Factors associated with severe epiglottitis in adults: Analysis of a Japanese inpatient database. Laryngoscope. 2015.09; 125 (9): 2072-2078.

Yamauchi Yasuhiro, Yasunaga Hideo, Matsui Hiroki, Hasegawa Wakae, Jo Taisuke, Takami Kazutaka, Fushimi Kiyohide, Nagase Takahide. Comparison of in-hospital mortality in patients with COPD, asthma and asthma-COPD overlap exacerbations. Respirology. 2015.08; 20 (6): 940-946.

Suzuki Sayaka, Yasunaga Hideo, Matsui Hiroki, Fushimi Kiyohide, Kondo Kenji, Yamasoba Tatsuya. Complication rates after functional endoscopic sinus surgery: Analysis of 50,734 Japanese patients. Laryngoscope. 2015.08; 125 (8): 1785-1791.

Toshiki Maeda, Akira Babazono, Takumi Nishi, Midori Yasui, Shinya Matsuda, Kiyohide Fushimi, Kenji Fujimori. The Impact of Opportunistic Infections on Clinical Outcome and Healthcare Resource Uses for Adult T Cell Leukaemia. PLoS ONE. 2015.08; 10 (8): e0135042.

Tagami T, Matsui H, Fushimi K, Yasunaga H. Supplemental dose of antithrombin use in disseminated intravascular coagulation patients after abdominal sepsis. Thromb Haemost. 2015.08; 114 (3): 537-545.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Intravenous Immunoglobulin and Mortality in Pneumonia Patients with Septic Shock: An Observational Nationwide Study. Clin. Infect. Dis.. 2015.08; 71 (2): 158-166.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Intravenous immunoglobulin use in septic shock patients after emergency laparotomy. J. Infect.. 2015.08; 61 (3): 385-392.

Kazue Ishitsuka, Hiroki Matsui, Nobuaki Michihata, Kiyohide Fushimi, Tomoo Nakamura, Hideo Yasunaga. Medical procedures and outcomes of Japanese patients with trisomy 18 or trisomy 13: Analysis of a nationwide administrative database of hospitalized patients. Am. J. Med. Genet. A. 2015.08; 167 (8): 1816-1821.

Hayato Yamana, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Procedure-based severity index for inpatients: development and validation using administrative database. BMC Health Serv Res. 2015.07; 15 261.

Yasuhiro Yamauchi, Hideo Yasunaga, Hiroki Matsui, Wakae Hasegawa, Taisuke Jo, Kazutaka Takami, Kiyohide Fushimi, Takahide Nagase. Comparison of clinical characteristics and outcomes between aspiration pneumonia and community-acquired pneumonia in patients with chronic obstructive pulmonary disease. BMC Pulm Med. 2015.07; 15 69.

Yusuke Sasabuchi, Hideo Yasunaga, Hiroki Matsui, Alan T Lefor, Hiromasa Horiguchi, Kiyohide Fushimi, Masamitsu Sanui. The Dose-Response Relationship Between Body Mass Index and Mortality in Subjects Admitted to the ICU With and Without Mechanical Ventilation. Respir Care. 2015.07; 60 (7): 983-991.

Toru Sugihara, Hideo Yasunaga, Changhong Yu, Hiromasa Horiguchi, Hiroaki Nishimatsu, Kiyohide Fushimi, Mickeal W Kattan, Yukio Homma. Perioperative outcome comparisons between open and laparoscopic nephroureterectomy among a population-based cohort in 2010-2012. J. Endourol.. 2015.07; 29 (7): 770-776.

Akahito Sako, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi, Hidetaka Hamasaki, Hisayuki Katsuyama, Tetsuro Tsujimoto, Atsushi Goto, Hidekatsu Yanai. Hospitalization for Hypoglycemia in Japanese Diabetic Patients: A Retrospective Study Using a National Inpatient Database, 2008-2012. Medicine (Baltimore). 2015.06; 94 (25): e1029.

Yusuke Sasabuchi, Hideo Yasunaga, Hiroki Matsui, Alan K Lefor, Hiromasa Horiguchi, Kiyohide Fushimi, Masamitsu Sanui. The Volume-Outcome Relationship in Critically Ill Patients in Relation to the ICU-to-Hospital Bed Ratio. Crit. Care Med.. 2015.06; 43 (6): 1239-1245.

Odagiri Hiroyuki, Yasunaga Hideo, Matsui Hiroki, Fushimi Kiyohide, Iizuka Toshiro, Kaise Mitsuru. Hospital volume and the occurrence of bleeding and perforation after colorectal endoscopic submucosal dissection: analysis of a national administrative database in Japan. Dis Colon Rectum. 2015.06; 58 (6): 597-603.

Masao Iwagami, Hideo Yasunaga, Eisei Noiri, Hiromasa Horiguchi, Kiyohide Fushimi, Takehiro Matsubara, Naoki Yahagi, Masaomi Nangaku, Kent Doi. Current state of continuous renal replacement therapy for acute kidney injury in Japanese intensive care units in 2011: analysis of a national administrative database. Nephrol. Dial. Transplant.. 2015.06; 30 (6): 988-995.

Tamiya Hiroyuki, Yasunaga Hideo, Matusi Hiroki, Fushimi Kiyohide, Ogawa Sumito, Akishita Masahiro. Hypnotics and the Occurrence of Bone Fractures in Hospitalized Dementia Patients: A Matched Case-Control Study Using a National Inpatient Database. PLoS One. 2015.06; 10 (6):

Momosaki Ryo, Yasunaga Hideo, Matsui Hiroki, Horiguchi Hiromasa, Fushimi Kiyohide, Abo Masahiro. Effect of dysphagia rehabilitation on oral intake in elderly patients with aspiration pneumonia. Geriatr Gerontol Int. 2015.06; 15 (6): 694-699.

Masato Takeuchi, Takeshi Tomomasa, Hideo Yasunaga, Hiromasa Horiguchi, Kiyohide Fushimi. Descriptive Epidemiology of Children Hospitalized for Inflammatory Bowel Disease in Japan: Inpatient Database Analyses. Pediatr Int. 2015.06; 57 (3): 443-448.

Naoko Shoda, Hideo Yasunaga, Hiromasa Horiguchi, Kiyohide Fushimi, Shinya Matsuda, Yuho Kadono, Sakae Tanaka. Prophylactic effect of fondaparinux and enoxaparin for preventing pulmonary embolism after total hip or knee arthroplasty: a retrospective observational study using the Japanese Diagnosis Procedure Combination Database. Mod Rheumatol. 2015.06; 25 (4): 625-629.

Niikura Ryota, Yasunaga Hideo, Yamaji Yutaka, Horiguchi Hiromasa, Fushimi Kiyohide, Yamada Atsuo, Hirata Yoshihiro, Koike Kazuhiko. Factors affecting in-hospital mortality in patients with lower gastrointestinal tract bleeding: a retrospective study using a national database in Japan. J Gastroenterol. 2015.05; 50 (5): 533-540.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Hiromasa Horiguchi, Kiyohide Fushimi. Effect of Intravenous Immunoglobulin on In-Hospital Mortality for Fulminant Myocarditis: Propensity Score Analyses. J. Card. Fail.. 2015.05; 21 (5): 391-397.

W Hasegawa, Y Yamauchi, H Yasunaga, M Sunohara, T Jo, H Matsui, K Fushimi, K Takami, T Nagase. Factors that predict in-hospital mortality in eosinophilic granulomatosis with polyangiitis. Allergy. 2015.05; 70 (5): 585-590.

Masao Iwagami, Hideo Yasunaga, Eisei Noiri, Hiromasa Horiguchi, Kiyohide Fushimi, Takehiro Matsubara, Naoki Yahagi, Masaomi Nangaku, Kent Doi. Choice of renal replacement therapy modality in intensive care units: Data from a Japanese Nationwide Administrative Claim Database. J Crit Care. 2015.04; 30 (2): 381-385.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Hiromasa Horiguchi, Kiyohide Fushimi. Effectiveness of Inferior Vena Cava Filters on Mortality as an Adjuvant to Antithrombotic Therapy. Am. J. Med.. 2015.03; 128 (3): 312.e23-e31.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Tetsuro Ueda, Hiromasa Horiguchi, Kiyohide Fushimi. Serious cardiac complications in coronary spasm provocation tests using acetylcholine or ergonovine: analysis of 21 512 patients from the diagnosis procedure combination database in Japan. Clin Cardiol. 2015.03; 38 (3): 171-177.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Tetsuro Ueda, Hiroyuki Tanaka, Hiromasa Horiguchi, Kiyohide Fushimi. Hospital Volume and Cardiac Complications of Endomyocardial Biopsy: A Retrospective Cohort Study of 9508 Adult Patients Using a Nationwide Inpatient Database in Japan. Clin Cardiol. 2015.03; 38 (3): 164-170.

Sato Masaya, Tateishi Ryosuke, Yasunaga Hideo, Horiguchi Hiromasa, Yoshida Haruhiko, Fushimi Kiyohide, Koike Kazuhiko. Variceal hemorrhage: Analysis of 9987 cases from a Japanese nationwide database. Hepatol Res. 2015.03; 45 (3): 288-293.

Takashi Tagami, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga. Use of recombinant human soluble thrombomodulin in patients with sepsis-induced disseminated intravascular coagulation after intestinal perforation. Front Med (Lausanne). 2015.02; 2 7.

Hamada Tsuyoshi, Yasunaga Hideo, Nakai Yousuke, Isayama Hiroyuki, Horiguchi Hiromasa, Fushimi Kiyohide, Koike Kazuhiko. Severe Bleeding after Percutaneous Transhepatic Drainage of the Biliary System: Effect of Antithrombotic Agents-Analysis of 34 606 Cases from a Japanese Nationwide Administrative Database. Radiology. 2015.02; 274 (2): 605-613.

Hiroyuki Odagiri, Hiroki Matsui, Kiyohide Fushimi, Mitsuru Kaise, Hideo Yasunaga. Factors associated with perforation related to diagnostic balloon-assisted enteroscopy: analysis of a national inpatient database in Japan. Endoscopy. 2015.02; 47 (2): 143-146.

Takashi Tagami, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Hideo Yasunaga. Low-dose corticosteroid use and mortality in severe community-acquired pneumonia patients. Eur. Respir. J.. 2015.02; 45 (2): 463-472.

Toshiki Maeda, Akira Babazono, Takumi Nishi, Shinya Matsuda, Kiyohide Fushimi, Kenji Fujimori. Quantification of the effect of chemotherapy and steroids on risk of Pneumocystis jiroveci among hospitalized patients with adult T-cell leukaemia. Br. J. Haematol.. 2015.02; 168 (4): 501-506.

Ryo Momosaki, Hideo Yasunaga, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Masahiro Abo. Effect of Early Rehabilitation by Physical Therapists on In-hospital Mortality After Aspiration Pneumonia in the Elderly. Arch Phys Med Rehabil. 2015.02; 96 (2): 205-209.

Takashi Tagami, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Hideo Yasunaga. Thoracic aortic injury in Japan--nationwide retrospective cohort study. Circ. J.. 2015.01; 79 (1): 55-60.

H Yamana, H Matsui, K Fushimi, H Yasunaga. Treatment options and outcomes of hospitalised tuberculosis patients: a nationwide study. Int. J. Tuberc. Lung Dis.. 2015.01; 19 (1): 120-126.

Wada Tomoki, Yasunaga Hideo, Inokuchi Ryota, Horiguchi Hiromasa, Fushimi Kiyohide, Matsubara Takehiro, Nakajima Susumu, Yahagi Naoki. Relationship between hospital volume and early outcomes in acute ischemic stroke patients treated with recombinant tissue plasminogen activator. Int J Stroke. 2015.01; 10 (1): 73-78.

Wakae Hasegawa, Yasuhiro Yamauchi, Hideo Yasunaga, Mitsuhiro Sunohara, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Kazutaka Takami, Takahide Nagase. Clinical features of 280 hospitalized patients with lymphangioleiomyomatosis in Japan. Respirology. 2015.01; 20 (1): 160-165.

T Tagami, H Matsui, H Horiguchi, K Fushimi, H Yasunaga. Recombinant human soluble thrombomodulin and mortality in severe pneumonia patients with sepsis-associated disseminated intravascular coagulation: an observational nationwide study. J. Thromb. Haemost.. 2015.01; 13 (1): 31-40.

Toshiaki Isogai, Hideo Yasunaga, Hiroki Matsui, Hiroyuki Tanaka, Tetsuro Ueda, Hiromasa Horiguchi, Kiyohide Fushimi. Effect of weekend admission for acute myocardial infarction on in-hospital mortality: A retrospective cohort study. Int. J. Cardiol.. 2015.01; 179C 315-320.

Noriko Sasaki, Susumu Kunisawa, Tetsuya Otsubo, Hiroshi Ikai, Kiyohide Fushimi, Yoshio Yasumura, Takeshi Kimura, Yuichi Imanaka. The relationship between the number of cardiologists and clinical practice patterns in acute heart failure: a cross-sectional observational study. BMJ Open. 2014.12; 4 (12): e005988.

Sugihara Toru, Yasunaga Hideo, Horiguchi Hiromasa, Fujimura Tetsuya, Fushimi Kiyohide, Yu Changhong, Kattan Michael W, Homma Yukio. Factors affecting choice between ureterostomy, ileal conduit and continent reservoir after radical cystectomy: Japanese series. Int J Clin Oncol. 2014.12; 19 (6): 1098-1104.

Ogura Koichi, Yasunaga Hideo, Horiguchi Hiromasa, Fushimi Kiyohide, Kawano Hirotaka. What is the effect of advanced age and comorbidity on postoperative morbidity and mortality after musculoskeletal tumor surgery? Clin Orthop Relat Res. 2014.12; 472 (12): 3971-3978.

Michihata Nobuaki, Matsui Hiroki, Fushimi Kiyohide, Yasunaga Hideo. Comparison between enteral nutrition and intravenous hyperalimentation in patients with eating disorders: results from the Japanese diagnosis procedure combination database. Eat Weight Disord. 2014.12; 19 (4): 473-478.

Yasuhiro Yamauchi, Wakae Hasegawa, Hideo Yasunaga, Mitsuhiro Sunohara, Taisuke Jo, Kazutaka Takami, Hiroki Matsui, Kiyohide Fushimi, Takahide Nagase. Paradoxical association between body mass index and in-hospital mortality in elderly patients with chronic obstructive pulmonary disease in Japan. Int J Chron Obstruct Pulmon Dis. 2014.12; 9 1337-1346.

Sugihara Toru, Yasunaga Hideo, Horiguchi Hiromasa, Matsui Hiroki, Nishimatsu Hiroaki, Nakagawa Tohru, Fushimi Kiyohide, Kattan Michael W, Homma Yukio. Comparison of perioperative outcomes including severe bladder injury between monopolar and bipolar transurethral resection of bladder tumors: a population based comparison. J Urol. 2014.11; 192 (5): 1355-1359.

Tsuda Yusuke, Yasunaga Hideo, Horiguchi Hiromasa, Fushimi Kiyohide, Kawano Hirotaka, Tanaka Sakae. Effects of fondaparinux on pulmonary embolism following hemiarthroplasty for femoral neck fracture: a retrospective observational study using the Japanese Diagnosis Procedure Combination database. J Orthop Sci. 2014.11; 19 (6): 991-996.

Sugihara Toru, Yasunaga Hideo, Horiguchi Hiromasa, Matsui Hiroki, Fujimura Tetsuya, Nishimatsu Hiroaki, Fukuhara Hiroshi, Kume Haruki, Changhong Yu, Kattan Michael W, Fushimi Kiyohide, Homma Yukio. Robot-assisted versus other types of radical prostatectomy: Population-based safety and cost comparison in Japan, 2012-2013. Cancer Sci. 2014.11; 105 (11): 1421-1426.

Sugihara Toru, Yasunaga Hideo, Horiguchi Hiromasa, Fushimi Kiyohide, Dalton Jarrod E, Schold Jesse, Kattan Michael W, Homma Yukio. Performance comparisons in major uro-oncological surgeries between the USA and Japan. Int J Urol. 2014.11; 21 (11): 1145-1150.

K Uehara, H Yasunaga, Y Morizaki, H Horiguchi, K Fushimi, S Tanaka. Necrotising soft-tissue infections of the upper limb: risk factors for amputation and death. Bone Joint J. 2014.11; 96-B (11): 1530-1534.

Chikuda Hirotaka, Ohya Junichi, Horiguchi Hiromasa, Takeshita Katsushi, Fushimi Kiyohide, Tanaka Sakae, Yasunaga Hideo. Ischemic stroke after cervical spine injury: analysis of 11,005 patients using the Japanese Diagnosis Procedure Combination database. Spine J. 2014.10; 14 (10): 2275-2280.

Seitetsu L Lee, Hideki Hashimoto, Takahide Kohro, Hiromasa Horiguchi, Daisuke Koide, Issei Komuro, Kiyohide Fushimi, Tsutomu Yamazaki, Hideo Yasunaga. Influence of municipality-level mean income on access to aortic valve surgery: a cross-sectional observational study under Japan's universal health-care coverage. PLoS ONE. 2014.10; 9 (10): e111071.

Uchida Kanji, Yasunaga Hideo, Sumitani Masahiko, Horiguchi Hiromasa, Fushimi Kiyohide, Yamada Yoshitsugu. Effects of remifentanil on in-hospital mortality and length of stay following clipping of intracranial aneurysm: a propensity score-matched analysis. J Neurosurg Anesthesiol. 2014.10; 26 (4): 291-298.

Ogura Koichi, Yasunaga Hideo, Horiguchi Hiromasa, Fushimi Kiyohide, Tanaka Sakae, Kawano Hirotaka. Nomogram predicting severe adverse events after musculoskeletal tumor surgery: analysis of a national administrative database. Ann Surg Oncol. 2014.10; 21 (11): 3564-3571.

Wada Tomoki, Yasunaga Hideo, Inokuchi Ryota, Horiguchi Hiromasa, Fushimi Kiyohide, Matsubara Takehiro, Nakajima Susumu, Yahagi Naoki. Effects of edaravone on early outcomes in acute ischemic stroke patients treated with recombinant tissue plasminogen activator. J Neurol Sci. 2014.10; 345 (1-2): 106-111.

Suzuki Sayaka, Yasunaga Hideo, Matsui Hiroki, Horiguchi Hiromasa, Fushimi Kiyohide, Yamasoba Tatsuya. Impact of systemic steroids on posttonsillectomy bleeding: analysis of 61 430 patients using a national inpatient database in Japan. JAMA Otolaryngol Head Neck Surg. 2014.10; 140 (10): 906-910.

Isogai Toshiaki, Yasunaga Hideo, Matsui Hiroki, Tanaka Hiroyuki, Ueda Tetsuro, Horiguchi Hiromasa, Fushimi Kiyohide. Out-of-hospital versus in-hospital Takotsubo cardiomyopathy: analysis of 3719 patients in the Diagnosis Procedure Combination database in Japan. Int J Cardiol. 2014.09; 176 (2): 413-417.

Tagami T, Matsui H, Horiguchi H, Fushimi K, Yasunaga H. Antithrombin and mortality in severe pneumonia patients with sepsis-associated disseminated intravascular coagulation: an observational nationwide study. J Thromb Haemost. 2014.09; 12 (9): 1470-1479.

Hideo Yasunaga, Hiroki Matsui, Hiromasa Horiguchi, Kiyohide Fushimi, Shinya Matsuda. Application of the diagnosis procedure combination (DPC) data to clinical studies. J. UOEH. 2014.09; 36 (3): 191-197.

Wakae Hasegawa, Yasuhiro Yamauchi, Hideo Yasunaga, Mitsuhiro Sunohara, Taisuke Jo, Hiroki Matsui, Kiyohide Fushimi, Kazutaka Takami, Takahide Nagase. Factors affecting mortality following emergency admission for chronic obstructive pulmonary disease. BMC Pulm Med. 2014.09; 14 (1): 151.

Taguchi Masashi, Kubo Tatsuhiko, Yamamoto Mitsuyoshi, Muramatsu Keiji, Yasunaga Hideo, Horiguchi Hiromasa, Fujimori Kenji, Matsuda Shinya, Fushimi Kiyohide, Harada Masaru. Body mass index influences the outcome of acute pancreatitis: an analysis based on the Japanese administrative database. Pancreas. 2014.08; 43 (6): 863-866.

Maeda Toshiki, Babazono Akira, Nishi Takumi, Matsuda Shinya, Fushimi Kiyohide, Fujimori Kenji. Regional differences in performance of bone marrow transplantation, care-resource use and outcome for adult T-cell leukaemia in Japan. BMC Health Serv Res. 2014.08; 14 337.

H Inokuchi, H Yasunaga, Y Nakahara, H Horiguchi, N Ogata, J Fujitani, S Matsuda, K Fushimi, N Haga. Effect of rehabilitation on mortality of patients with Guillain-Barre Syndrome: a propensity-matched analysis using nationwide database. Eur J Phys Rehabil Med. 2014.08; 50 (4): 439-446.

Takagi Toshio, Sugihara Toru, Yasunaga Hideo, Horiguchi Hiromasa, Fushimi Kiyohide, Kondo Tsunenori, Homma Yukio, Tanabe Kazunari. Cytoreductive nephrectomy for metastatic renal cell carcinoma: a population-based analysis of perioperative outcomes according to clinical stage. Int J Urol. 2014.08; 21 (8): 770-775.

Kaneko Takeshi, Hirakawa Kazuo, Fushimi Kiyohide. Relationship between peri-operative outcomes and hospital surgical volume of total hip arthroplasty in Japan. Health Policy. 2014.07; 117 (1): 48-53.

Sako Akahito, Yasunaga Hideo, Horiguchi Hiromasa, Fushimi Kiyohide, Yanai Hidekatsu, Uemura Naomi. Prevalence and in-hospital mortality of gastrostomy and jejunostomy in Japan: a retrospective study with a national administrative database. Gastrointest Endosc. 2014.07; 80 (1): 88-96.

Sumitani Masahiko, Yasunaga Hideo, Uchida Kanji, Horiguchi Hiromasa, Nakamura Masaya, Ohe Kazuhiko, Fushimi Kiyohide, Matsuda Shinya, Yamada Yoshitsugu. Perioperative factors affecting the occurrence of acute complex regional pain syndrome following limb bone fracture surgery: data from the Japanese Diagnosis Procedure Combination database. Rheumatology (Oxford). 2014.07; 53 (7): 1186-1193.

Fujino Yoshihisa, Kubo Tatsuhiko, Muramatsu Keiji, Murata Atsuhiko, Hayashida Kenshi, Tomioka Shinichi, Fushimi Kiyohide, Matsuda Shinya. Impact of regional clinical pathways on the length of stay in hospital among stroke patients in Japan. Med Care. 2014.07; 52 (7): 634-640.

Sugihara Toru, Yasunaga Hideo, Horiguchi Hiromasa, Matsuda Shinya, Fushimi Kiyohide, Kattan Michael W, Homma Yukio. Does mechanical bowel preparation ameliorate damage from rectal injury in radical prostatectomy? Analysis of 151 rectal injury cases. Int J Urol. 2014.06; 21 (6): 566-570.

Iwagami Masao, Yasunaga Hideo, Doi Kent, Horiguchi Hiromasa, Fushimi Kiyohide, Matsubara Takehiro, Yahagi Naoki, Noiri Eisei. Postoperative polymyxin B hemoperfusion and mortality in patients with abdominal septic shock: a propensity-matched analysis. Crit Care Med. 2014.05; 42 (5): 1187-1193.

Shigeoka Hitoshi, Fushimi Kiyohide. Supplier-induced demand for newborn treatment: evidence from Japan. J Health Econ. 2014.05; 35 162-178.

Yoshioka R, Yasunaga H, Hasegawa K, Horiguchi H, Fushimi K, Aoki T, Sakamoto Y, Sugawara Y, Kokudo N. Impact of hospital volume on hospital mortality, length of stay and total costs after pancreaticoduodenectomy. Br J Surg. 2014.04; 101 (5): 523-529.

Hamada Tsuyoshi, Yasunaga Hideo, Nakai Yousuke, Isayama Hiroyuki, Horiguchi Hiromasa, Matsuda Shinya, Fushimi Kiyohide, Koike Kazuhiko. Severe bleeding and perforation are rare complications of endoscopic ultrasound-guided fine needle aspiration for pancreatic masses: an analysis of 3,090 patients from 212 hospitals. Gut Liver. 2014.03; 8 (2): 215-218.

Chikuda Hirotaka, Yasunaga Hideo, Takeshita Katsushi, Horiguchi Hiromasa, Kawaguchi Hiroshi, Ohe Kazuhiko, Fushimi Kiyohide, Tanaka Sakae. Mortality and morbidity after high-dose methylprednisolone treatment in patients with acute cervical spinal cord injury: a propensity-matched analysis using a nationwide administrative database. Emerg Med J. 2014.03; 31 (3): 201-206.

Sato Masaya, Tateishi Ryosuke, Yasunaga Hideo, Horiguchi Hiromasa, Yoshida Haruhiko, Matsuda Shinya, Fushimi Kiyohide, Koike Kazuhiko. Acute liver disease in Japan: a nationwide analysis of the Japanese Diagnosis Procedure Combination database. J Gastroenterol. 2014.03; 49 (3): 547-554.

Hamada Tsuyoshi, Yasunaga Hideo, Nakai Yousuke, Isayama Hiroyuki, Horiguchi Hiromasa, Fushimi Kiyohide, Koike Kazuhiko. Impact of hospital volume on outcomes in acute pancreatitis: a study using a nationwide administrative database. J Gastroenterol. 2014.01; 49 (1): 148-155.

Mitsuhiro Nakamura, Hideo Yasunaga, Takafumi Shimada, Hiromasa Horiguchi, Shinya Matsuda, Kiyohide Fushimi. Body mass index and in-hospital mortality in anorexia nervosa: data from the Japanese Diagnosis Procedure Combination database. Eat Weight Disord. 2013.12; 18 (4): 437-439.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Nobuo Tsuru, Tetsuya Fujimura, Hiroaki Nishimatsu, Haruki Kume, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi, Yukio Homma. Wide range and variation in minimally invasive surgery for renal malignancy in Japan: a population-based analysis. Int. J. Clin. Oncol.. 2013.12; 18 (6): 1070-1077.

Ayako Oda, Hiroyo Kuwabara, Kiyohide Fushimi. Disparities associated with breast reconstruction in Japan. Plast. Reconstr. Surg.. 2013.12; 132 (6): 1392-1399.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Tetsuya Fujimura, Hiroaki Nishimatsu, Haruki Kume, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi, Yukio Homma. Longer operative time is associated with higher risk of severe complications after percutaneous nephrolithotomy: analysis of 1511 cases from a Japanese nationwide database. Int. J. Urol.. 2013.12; 20 (12): 1193-1198.

Tsuyoshi Hamada, Hideo Yasunaga, Yousuke Nakai, Hiroyuki Isayama, Hiromasa Horiguchi, Kiyohide Fushimi, Kazuhiko Koike. Japanese severity score for acute pancreatitis well predicts in-hospital mortality: a nationwide survey of 17,901 cases. J. Gastroenterol.. 2013.12; 48 (12): 1384-1391.

Takahiro Inoue, Kiyohide Fushimi. Stroke care units versus general medical wards for acute management of stroke in Japan. Stroke. 2013.11; 44 (11): 3142-3147.

Mitsuhiro Nakamura, Hideo Yasunaga, Tadashi Haraguchi, Shuntaro Ando, Toru Sugihara, Hiromasa Horiguchi, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi. Length of mechanical restraint following haloperidol injections versus oral atypical antipsychotics for the initial treatment of acute schizophrenia: a propensity-matched analysis from the Japanese diagnosis procedure combination database. Psychiatry Res. 2013.10; 209 (3): 412-416.

Masato Takeuchi, Hideo Yasunaga, Hiromasa Horiguchi, Kiyohide Fushimi. The burden of epiglottitis among Japanese children before the Haemophilus influenzae type b vaccination era: an analysis using a nationwide administrative database. J. Infect. Chemother.. 2013.10; 19 (5): 876-879.

Tsuyoshi Hamada, Hideo Yasunaga, Yousuke Nakai, Hiroyuki Isayama, Hiromasa Horiguchi, Shinya Matsuda, Kiyohide Fushimi, Kazuhiko Koike. Continuous regional arterial infusion for acute pancreatitis: a propensity score analysis using a nationwide administrative database. Crit Care. 2013.10; 17 (5): R214.

Tsuyoshi Hamada, Hideo Yasunaga, Yousuke Nakai, Hiroyuki Isayama, Hiromasa Horiguchi, Shinya Matsuda, Kiyohide Fushimi, Kazuhiko Koike. Rarity of severe bleeding and perforation in endoscopic ultrasound-guided fine needle aspiration for submucosal tumors. Dig. Dis. Sci.. 2013.09; 58 (9): 2634-2638.

H Yasunaga, H Horiguchi, S Matsuda, K Fushimi, H Hashimoto, J Z Ayanian. Body mass index and outcomes following gastrointestinal cancer surgery in Japan. Br J Surg. 2013.09; 100 (10): 1335-1343.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Associations between the use of critical care procedures and change in functional status at discharge. J Intensive Care Med. 2013.09; 28 (5): 296-306.

Susumu Kunisawa, Toshitaka Morishima, Naoto Ukawa, Hiroshi Ikai, Tetsuya Otsubo, Koichi B Ishikawa, Chiaki Yokota, Kazuo Minematsu, Kiyohide Fushimi, Yuichi Imanaka. Association of geographical factors with administration of tissue plasminogen activator for acute ischemic stroke. J Am Heart Assoc. 2013.09; 2 (5): e000336.

Takeshi Umegaki, Masaji Nishimura, Kimitaka Tajimi, Kiyohide Fushimi, Hiroshi Ikai, Yuichi Imanaka. An in-hospital mortality equation for mechanically ventilated patients in intensive care units. J Anesth. 2013.08; 27 (4): 541-549.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Tetsuya Fujimura, Hiroaki Nishimatsu, Haruki Kume, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi, Yukio Homma. Is mechanical bowel preparation in laparoscopic radical prostatectomy beneficial? An analysis of a Japanese national database. BJU Int.. 2013.07; 112 (2): E76-E81.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Tetsuya Fujimura, Hiroaki Nishimatsu, Nobuo Tsuru, Kazuo Suzuki, Suzuki Kazuo, Kazuhiko Ohe, Kiyohide Fushimi, Yukio Homma. Regional, institutional and individual factors affecting selection of minimally invasive nephroureterectomy in Japan: a national database analysis. Int. J. Urol.. 2013.07; 20 (7): 695-700.

Tatsuma Fukuda, Hideo Yasunaga, Hiromasa Horiguchi, Kazuhiko Ohe, Kiyohide Fushimi, Takehiro Matsubara, Naoki Yahagi. Health care costs related to out-of-hospital cardiopulmonary arrest in Japan. Resuscitation. 2013.07; 84 (7): 964-969.

Kuwabara, K., Matsuda, S., Fushimi, K., Ishikawa, K.B., Horiguchi, H., Fujimori, K. Comparative study of functional outcomes of three laparoscopic intestinal surgical procedures Health Policy and Technology. 2013.06; 2 (2): 94-109.

Hirotaka Chikuda, Hideo Yasunaga, Hiromasa Horiguchi, Katsushi Takeshita, Shurei Sugita, Shuji Taketomi, Kiyohide Fushimi, Sakae Tanaka. Impact of age and comorbidity burden on mortality and major complications in older adults undergoing orthopaedic surgery: an analysis using the Japanese diagnosis procedure combination database. BMC Musculoskelet Disord. 2013.05; 14 173.

Hideo Yasunaga, Hiromasa Horiguchi, Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Hideki Hashimoto, John Z Ayanian. Outcomes after laparoscopic or open distal gastrectomy for early-stage gastric cancer: a propensity-matched analysis. Ann. Surg.. 2013.04; 257 (4): 640-646.

Kazuaki Kuwabara, Kiyohide Fushimi, Shinya Matsuda, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Association of early post-procedure hemodynamic management with the outcomes of subarachnoid hemorrhage patients. J. Neurol.. 2013.03; 260 (3): 820-831.

Toru Akiyama, Hirotaka Chikuda, Hideo Yasunaga, Hiromasa Horiguchi, Kiyohide Fushimi, Kazuo Saita. Incidence and risk factors for mortality of vertebral osteomyelitis: a retrospective analysis using the Japanese diagnosis procedure combination database. BMJ Open. 2013.03; 3 (3):

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B. Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Coronary artery bypass grafting and lung lobectomy: Functional outcomes at discharge Journal of Clinical Medicine and Research. 2013.03; 5 (3): 29-39.

Kazuto Yamashita, Hiroshi Ikai, Masaji Nishimura, Kiyohide Fushimi, Yuichi Imanaka. Effect of certified training facilities for intensive care specialists on mortality in Japan. Crit Care Resusc. 2013.03; 15 (1): 28-32.

Hideo Yasunaga, Hiromasa Horiguchi, Hideki Hashimoto, Shinya Matsuda, Kiyohide Fushimi. Effect and cost of treatment for acute pancreatitis with or without gabexate mesylate: a propensity score analysis using a nationwide administrative database. Pancreas. 2013.03; 42 (2): 260-264.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Hiroaki Nishimatsu, Haruki Kume, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi, Yukio Homma. A nomogram predicting severe adverse events after ureteroscopic lithotripsy: 12,372 patients in a Japanese national series. BJU Int.. 2013.03; 111 (3): 459-466.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Nobuo Tsuru, Hiroyuki Ihara, Tetsuya Fujimura, Hiroaki Nishimatsu, Kazuhiko Ohe, Kiyohide Fushimi, Yukio Homma. Comparisons of perioperative outcomes and costs between open and laparoscopic radical prostatectomy: a propensity-score matching analysis based on the Japanese Diagnosis Procedure Combination database. Int. J. Urol.. 2013.03; 20 (3): 349-353.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Tetsuya Fujimura, Hiroaki Nishimatsu, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi, Michael W Kattan, Yukio Homma. Does mechanical bowel preparation improve quality of laparoscopic nephrectomy? Propensity score-matched analysis in Japanese series. Urology. 2013.01; 81 (1): 74-79.

Kazuaki Kuwabara, Akihito Hagiwara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. A community-based comparison of trauma patient outcomes between D- and L-lactate fluids. Am J Emerg Med. 2013.01; 31 (1): 206-214.

Toru Sugihara, Hideo Yasunaga, Hiromasa Horiguchi, Tetsuya Fujimura, Kazuhiko Ohe, Shinya Matsuda, Kiyohide Fushimi, Yukio Homma. Impact of surgical intervention timing on the case fatality rate for Fournier's gangrene: an analysis of 379 cases. BJU Int.. 2012.12; 110 (11 Pt C): E1096-E1100.

Yasuyuki Okumura, Sayuri Shimizu, Koichi B Ishikawa, Shinya Matsuda, Kiyohide Fushimi, Hiroto Ito. Comparison of emergency hospital admissions for drug poisoning and major diseases: a retrospective observational study using a nationwide administrative discharge database. BMJ Open. 2012.12; 2 (6):

Daisuke Sato, Kiyohide Fushimi. Impact of teaching intensity and academic status on medical resource utilization by teaching hospitals in Japan. Health Policy. 2012.11; 108 (1): 86-92.

Hideo Yasunaga, Hiromasa Horiguchi, Shinya Matsuda, Kiyohide Fushimi, Hideki Hashimoto, Kazuhiko Ohe, Norihiro Kokudo. Relationship between hospital volume and operative mortality for liver resection: Data from the Japanese Diagnosis Procedure Combination database. Hepatol. Res.. 2012.11; 42 (11): 1073-1080.

Yasuyuki Okumura, Sayuri Shimizu, Koichi B Ishikawa, Shinya Matsuda, Kiyohide Fushimi, Hiroto Ito. Characteristics, procedural differences, and costs of inpatients with drug poisoning in acute care hospitals in Japan. Gen Hosp Psychiatry. 2012.11; 34 (6): 681-685.

H Yasunaga, H Horiguchi, H Hashimoto, S Matsuda, K Fushimi. The burden of Clostridium difficile-associated disease following digestive tract surgery in Japan. J. Hosp. Infect.. 2012.11; 82 (3): 175-180.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Comparative Study on the Difference in Functional Outcomes at Discharge between Proximal and Total Gastrectomy. Case Rep Gastroenterol. 2012.05; 6 (2): 400-409.

Hidenori Imai, Kiyohide Fushimi. Factors associated with the use of institutional long-term care in Japan. Geriatr Gerontol Int. 2012.01; 12 (1): 72-79.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Contribution of the administrative database and the geographical information system to disaster preparedness and regionalization. Am J Disaster Med. 2012; 7 (2): 95-103.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Community-based evaluation of laparoscopic versus open simple closure of perforated peptic ulcers. World J Surg. 2011.11; 35 (11): 2485-2492.

Chihiro Takahashi, Kiyohide Fushimi, Shinya Matsuda. Factors associated with a protracted hospital stay after hip fracture surgery in Japan. Geriatr Gerontol Int. 2011.10; 11 (4): 474-481.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Reappraising the surgical approach on the perforated gastroduodenal ulcer: should gastric resection be abandoned? J Clin Med Res. 2011.10; 3 (5): 213-222.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Early crystalloid fluid volume management in acute pancreatitis: association with mortality and organ failure. Pancreatology. 2011.09; 11 (3): 351-361.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenshi Hayashida, Kenji Fujimori. Contribution of case-mix classification to profiling hospital characteristics and productivity. Int J Health Plann Manage. 2011.07; 26 (3): e138-e150.

Hiroyo Kuwabara, Kiyohide Fushimi, Shinya Matsuda. Relationship between hospital volume and outcomes following primary percutaneous coronary intervention in patients with acute myocardial infarction. Circ. J. 2011.05; 75 (5): 1107-1112.

Shinobu Imai-Kamata, Kiyohide Fushimi. Factors associated with adherence to prophylactic antibiotic therapy for elective general surgeries in Japan. Int J Qual Health Care. 2011.04; 23 (2): 167-172.

Kazuaki Kuwabara, Shinya Matsuda, Kiyohide Fushimi, Koichi B Ishikawa, Hiromasa Horiguchi, Kenji Fujimori. Relationships of age, cholecystectomy approach and timing with the surgical and functional outcomes of elderly patients with cholecystitis. Int J Surg. 2011.03; 9 (5): 392-399.

Hude Quan, Bing Li, Chantal M Couris, Kiyohide Fushimi, Patrick Graham, Phil Hider, Jean-Marie Januel, Vijaya Sundararajan. Updating and validating the Charlson comorbidity index and score for risk adjustment in hospital discharge abstracts using data from 6 countries. Am. J. Epidemiol. 2011.03; 173 (6): 676-682.