{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T03:41:22Z","timestamp":1764906082309},"reference-count":28,"publisher":"Springer Science and Business Media LLC","issue":"6","license":[{"start":{"date-parts":[[2022,2,11]],"date-time":"2022-02-11T00:00:00Z","timestamp":1644537600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2022,2,11]],"date-time":"2022-02-11T00:00:00Z","timestamp":1644537600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"funder":[{"name":"The Health Science and Labor Research Grants"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Surg Today"],"published-print":{"date-parts":[[2022,6]]},"DOI":"10.1007\/s00595-022-02467-x","type":"journal-article","created":{"date-parts":[[2022,2,11]],"date-time":"2022-02-11T19:02:20Z","timestamp":1644606140000},"page":"941-952","update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["No association between hospital volume and short-term outcomes of some common surgeries: a retrospective cohort study based on a Japanese nationwide database"],"prefix":"10.1007","volume":"52","author":[{"given":"Kota","family":"Itamoto","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiraku","family":"Kumamaru","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Susumu","family":"Aikou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Koichi","family":"Yagi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroharu","family":"Yamashita","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sachiyo","family":"Nomura","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroaki","family":"Miyata","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shinji","family":"Kuroda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshiyoshi","family":"Fujiwara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shunsuke","family":"Endo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuko","family":"Kitagawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshihiro","family":"Kakeji","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasuyuki","family":"Seto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,2,11]]},"reference":[{"key":"2467_CR1","doi-asserted-by":"publisher","first-page":"712","DOI":"10.1097\/SLA.0000000000002965","volume":"268","author":"R Vonlanthen","year":"2018","unstructured":"Vonlanthen R, Lodge P, Barkun Jeffrey S, Farges O, Rogiers X, Soreide K, et al. Toward a consensus on centralization in surgery. Ann Surg. 2018;268:712\u201324.","journal-title":"Ann Surg"},{"key":"2467_CR2","doi-asserted-by":"publisher","first-page":"3234","DOI":"10.1200\/JCO.18.02035","volume":"37","author":"H Sheetz Kyle","year":"2019","unstructured":"Sheetz Kyle H, Dimick Justin B, Nathan H. Centralization of high-risk cancer surgery within existing hospital systems. J Clin Oncol. 2019;37:3234\u201342.","journal-title":"J Clin Oncol"},{"key":"2467_CR3","doi-asserted-by":"publisher","first-page":"288","DOI":"10.1097\/SLA.0000000000003232","volume":"272","author":"RD Becher","year":"2020","unstructured":"Becher RD, DeWane MP, Sukumar N, Stolar MJ, Gill TM, Maung AA, et al. Hospital volume and operative mortality for general surgery operations performed emergently in adults. Ann Surg. 2020;272:288\u2013303.","journal-title":"Ann Surg"},{"key":"2467_CR4","doi-asserted-by":"publisher","first-page":"910","DOI":"10.1016\/j.jamcollsurg.2019.02.053","volume":"228","author":"RD Becher","year":"2019","unstructured":"Becher RD, DeWane MP, Sukumar N, Stolar MJ, Gill TM, Becher RM, et al. Hospital operative volume and quality indication for general surgery operations performed emergently in geriatric patients. J Am Coll Surg. 2019;228:910\u201323.","journal-title":"J Am Coll Surg"},{"key":"2467_CR5","doi-asserted-by":"publisher","first-page":"244","DOI":"10.1097\/SLA.0000000000000375","volume":"260","author":"BN Reames","year":"2014","unstructured":"Reames BN, Ghaferi AA, Birkmeyer JD, Dimick JB. Hospital volume and operative mortality in the modern era. Ann Surg. 2014;260:244\u201351.","journal-title":"Ann Surg"},{"key":"2467_CR6","doi-asserted-by":"publisher","first-page":"155","DOI":"10.1016\/j.amjsurg.2017.03.022","volume":"215","author":"F Giwa","year":"2018","unstructured":"Giwa F, Salami A, Abioye AI. Hospital esophagectomy volume and postoperative length of stay: a systematic review and meta-analysis. Am J Surg. 2018;215:155\u201362.","journal-title":"Am J Surg"},{"key":"2467_CR7","doi-asserted-by":"publisher","first-page":"319","DOI":"10.1016\/j.hpb.2018.08.011","volume":"21","author":"S Nymo Linn","year":"2019","unstructured":"Nymo Linn S, Soreide K, Kleive D, Olsen F, Lassen K. The effect of centralization on short term outcomes of pancreatoduodenectomy in a universal health care system. HPB (Oxford). 2019;21:319\u201327.","journal-title":"HPB (Oxford)"},{"key":"2467_CR8","doi-asserted-by":"publisher","first-page":"981","DOI":"10.1016\/j.hpb.2018.11.013","volume":"21","author":"J Idrees Jay","year":"2019","unstructured":"Idrees Jay J, Merath K, Gani F, Bagante F, Mehta R, Beal E, et al. Trends in centralization of surgical care and compliance with national cancer center network guidelines for resected cholangiocarcinoma. HPB (Oxford). 2019;21:981\u20139.","journal-title":"HPB (Oxford)"},{"key":"2467_CR9","doi-asserted-by":"publisher","first-page":"32","DOI":"10.1016\/j.ejca.2016.05.021","volume":"64","author":"H Moller","year":"2016","unstructured":"Moller H, Riaz Sharma P, Holmberg L, Jakobsen E, Lagergren J, Page R, et al. High lung cancer surgical procedure volume is associated with shorter length of stay and lower risks of re-admission and death: national cohort analysis in England. Eur J Cancer. 2016;64:32\u201343.","journal-title":"Eur J Cancer"},{"key":"2467_CR10","doi-asserted-by":"publisher","first-page":"190","DOI":"10.1007\/s10120-018-0883-1","volume":"22","author":"M Iwatsuki","year":"2019","unstructured":"Iwatsuki M, Yamamoto H, Miyata H, Kakeji Y, Yoshida K, Konno H, et al. Effect of hospital and surgeon volume on postoperative outcome after distal gastrectomy for gastric cancer based on data from 145,523 Japanese patients collected from a nationwide web-based data entry system. Gastric Cancer. 2019;22:190\u2013201.","journal-title":"Gastric Cancer"},{"key":"2467_CR11","doi-asserted-by":"publisher","first-page":"1880","DOI":"10.1002\/bjs.10307","volume":"103","author":"T Nishigori","year":"2016","unstructured":"Nishigori T, Miyata H, Okabe H, Toh Y, Matsubara H, Konno H, et al. Impact of hospital volume on risk-adjusted mortality following oesophagectomy in Japan. Br J Surg. 2016;103:1880\u20136.","journal-title":"Br J Surg"},{"key":"2467_CR12","doi-asserted-by":"publisher","first-page":"313","DOI":"10.1002\/jhbp.344","volume":"23","author":"F Miura","year":"2016","unstructured":"Miura F, Yamamoto M, Gotoh M, Konno H, Fujimoto J, Yanaga K, et al. Validation of the board certification system for expert surgeons (hepato-biliary-pancreatic field) using the data of the national clinical database of Japan: part 1 - hepatectomy of more than one segment. J Hepatobiliary Pancreat Sci. 2016;23:313\u201323.","journal-title":"J Hepatobiliary Pancreat Sci"},{"key":"2467_CR13","doi-asserted-by":"publisher","first-page":"353","DOI":"10.1002\/jhbp.348","volume":"23","author":"F Miura","year":"2016","unstructured":"Miura F, Yamamoto M, Gotoh M, Konno H, Fujimoto J, Yanaga K, et al. Validation of the board certification system for expert surgeons (hepato-biliary-pancreatic field) using the data of the national clinical database of Japan: part 2 \u2013 pancreatoduodenectomy. J Hepatobiliary Pancreat Sci. 2016;23:353\u201363.","journal-title":"J Hepatobiliary Pancreat Sci"},{"key":"2467_CR14","doi-asserted-by":"publisher","first-page":"80","DOI":"10.1002\/ags3.12026","volume":"1","author":"Y Seto","year":"2017","unstructured":"Seto Y, Kakeji Y, Miyata H, Iwanaka T. National clinical database (NCD) in Japan for gastroenterological surgery: brief introduction. Ann Gastroenterol Surg. 2017;1:80\u20131.","journal-title":"Ann Gastroenterol Surg"},{"key":"2467_CR15","doi-asserted-by":"publisher","first-page":"65","DOI":"10.1007\/s00595-018-1700-5","volume":"49","author":"A Tomotaki","year":"2019","unstructured":"Tomotaki A, Kumamaru H, Hashimoto H, Takahashi A, Ono M, Iwanaka T, et al. Evaluating the quality of data from the Japanese national clinical database 2011 via a comparison with regional government report data and medical charts. Surg Today. 2019;49:65\u201371.","journal-title":"Surg Today"},{"key":"2467_CR16","doi-asserted-by":"publisher","first-page":"328","DOI":"10.1007\/s00595-018-1733-9","volume":"49","author":"S Kanaji","year":"2019","unstructured":"Kanaji S, Takahashi A, Miyata H, Marubashi S, Kakeji Y, Konno H, et al. Initial verification of data from a clinical database of gastroenterological surgery in Japan. Surg Today. 2019;49:328\u201333.","journal-title":"Surg Today"},{"key":"2467_CR17","doi-asserted-by":"publisher","first-page":"187","DOI":"10.1097\/SLA.0b013e3181b13ca2","volume":"250","author":"A Clavien Pierre","year":"2009","unstructured":"Clavien Pierre A, Barkun J, de Oliveira ML, Vauthey Jean N, Dindo D, Schulick Richard D, et al. The Clavien-Dindo classification of surgical complications: five-year experience. Ann Surg. 2009;250:187\u201396.","journal-title":"Ann Surg"},{"key":"2467_CR18","doi-asserted-by":"publisher","first-page":"897","DOI":"10.1007\/s11605-015-2746-y","volume":"19","author":"A Murata","year":"2015","unstructured":"Murata A, Mayumi T, Muramatsu K, Ohtani M, Matsuda S. Effect of hospital volume on outcomes of laparoscopic appendectomy for acute appendicitis: an observational study. J Gastrointest Surg. 2015;19:897\u2013904.","journal-title":"J Gastrointest Surg"},{"key":"2467_CR19","doi-asserted-by":"publisher","first-page":"280","DOI":"10.1016\/j.surge.2019.10.006","volume":"18","author":"RM O\u2019Connell","year":"2020","unstructured":"O\u2019Connell RM, Abd Elwahab S, Mealy K. The impact of hospital grade, hospital-volume, and surgeon-volume on outcomes for adults undergoing appendicectomy. Surgeon. 2020;18:280\u20136.","journal-title":"Surgeon"},{"key":"2467_CR20","doi-asserted-by":"publisher","first-page":"974","DOI":"10.1007\/s00268-012-1856-x","volume":"37","author":"E Andersson Roland","year":"2013","unstructured":"Andersson Roland E. Short and long-term mortality after appendectomy in Sweden 1987 to 2006. Influence of appendectomy diagnosis, sex, age, co-morbidity, surgical method, hospital volume, and time period. A national population-based cohort study. World J Surg. 2013;37:974\u201381.","journal-title":"World J Surg"},{"key":"2467_CR21","doi-asserted-by":"publisher","first-page":"e3330","DOI":"10.1136\/bmj.e3330","volume":"344","author":"M Harrison Ewen","year":"2012","unstructured":"Harrison Ewen M, O\u2019Neill S, Meurs Thomas S, Wong Pang L, Duxbury M, Paterson-Brown S, et al. Hospital volume and patient outcomes after cholecystectomy in Scotland: retrospective, national population based study. BMJ. 2012;344:e3330.","journal-title":"BMJ"},{"key":"2467_CR22","doi-asserted-by":"publisher","first-page":"21","DOI":"10.2147\/RMHP.S93285","volume":"9","author":"X Zhang","year":"2016","unstructured":"Zhang X, Oyama T. Investigating the health care delivery system in Japan and reviewing the local public hospital reform. Risk Manag Healthc Policy. 2016;9:21\u201332.","journal-title":"Risk Manag Healthc Policy"},{"key":"2467_CR23","doi-asserted-by":"publisher","first-page":"481","DOI":"10.2334\/josnusd.19-0198","volume":"61","author":"Y Sasai","year":"2019","unstructured":"Sasai Y, Suzuki Y, Takeuchi Y. An analysis of the current condition of the medical insurance system in Japan. J Oral Sci. 2019;61:481\u20132.","journal-title":"J Oral Sci"},{"key":"2467_CR24","doi-asserted-by":"publisher","first-page":"215","DOI":"10.1111\/j.1440-1854.2004.00609.x","volume":"12","author":"M Matsumoto","year":"2004","unstructured":"Matsumoto M, Okayama M, Inoue K, Kajii E. High-tech rural clinics and hospitals in Japan: a comparison to the Japanese average. Aust J Rural Health. 2004;12:215\u20139.","journal-title":"Aust J Rural Health"},{"key":"2467_CR25","first-page":"279","volume":"35","author":"T Nakamura","year":"2012","unstructured":"Nakamura T, Okayama M, Sekine S, Kajii E. Association between increases in number of physicians and the standard mortality ratio in medical administrative districts in Japan [in Japanese]. Off J Jpn Prim Care Assoc. 2012;35:279\u201385.","journal-title":"Off J Jpn Prim Care Assoc"},{"key":"2467_CR26","doi-asserted-by":"publisher","first-page":"1181","DOI":"10.5833\/jjgs.2016.sr001","volume":"49","author":"I Makino","year":"2016","unstructured":"Makino I, Miyata H, Ohta T, Gotoh M, Konno H, Mori M, et al. Investigation of current actual condition of medical system in Japan on the basis of secondary medical area for establishing a new training program for medical specialist [in Japanese]. Jpn J Gastroenterol Surg. 2016;49:1181\u201390.","journal-title":"Jpn J Gastroenterol Surg"},{"key":"2467_CR27","doi-asserted-by":"publisher","first-page":"e0197144","DOI":"10.1371\/journal.pone.0197144","volume":"13","author":"T Sekiguchi","year":"2018","unstructured":"Sekiguchi T, Tamura K, Masuda N. Population changes in residential clusters in Japan. PLoS ONE. 2018;13:e0197144.","journal-title":"PLoS ONE"},{"key":"2467_CR28","doi-asserted-by":"publisher","first-page":"1163","DOI":"10.3919\/jjsa.78.1163","volume":"78","author":"H Ueo","year":"2017","unstructured":"Ueo H, Konishi T, Kaneko H, Sumiyama Y, Atomi Y. Questionnaire survey on the current status and problem for surgical practice in the Japanese community medicine [in Japanese]. J Jpn Surg Assoc. 2017;78:1163\u201378.","journal-title":"J Jpn Surg Assoc"}],"container-title":["Surgery Today"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00595-022-02467-x.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00595-022-02467-x\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00595-022-02467-x.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,5,25]],"date-time":"2022-05-25T23:03:37Z","timestamp":1653519817000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00595-022-02467-x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,2,11]]},"references-count":28,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2022,6]]}},"alternative-id":["2467"],"URL":"https:\/\/doi.org\/10.1007\/s00595-022-02467-x","relation":{},"ISSN":["0941-1291","1436-2813"],"issn-type":[{"value":"0941-1291","type":"print"},{"value":"1436-2813","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,2,11]]},"assertion":[{"value":"19 July 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"10 October 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"11 February 2022","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"KI, HK, SA, KY, HY, SN, HM, SK, TF, SE, YK, YK, and YS have no conflicts of interest or financial ties to disclose regarding the submitted work.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"All procedures followed in this study were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the 1964 Declaration of Helsinki and later versions. The Institutional Review Board of the University of Tokyo Hospital approved this study (2019033NI).","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent for this analysis was based on the informed opt-out procedure because of the retrospective nature of the study and anonymous clinical data were used for the analysis.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}