{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T14:09:42Z","timestamp":1792505382601,"version":"4.5.0"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"12","license":[{"start":{"date-parts":[[2020,7,5]],"date-time":"2020-07-05T00:00:00Z","timestamp":1593907200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2020,7,5]],"date-time":"2020-07-05T00:00:00Z","timestamp":1593907200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Surg Today"],"published-print":{"date-parts":[[2020,12]]},"DOI":"10.1007\/s00595-020-02069-5","type":"journal-article","created":{"date-parts":[[2020,7,5]],"date-time":"2020-07-05T07:02:36Z","timestamp":1593932556000},"page":"1657-1663","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Identification of risk factors for open conversion from laparoscopic cholecystectomy for acute cholecystitis based on computed tomography findings"],"prefix":"10.1007","volume":"50","author":[{"given":"Ryosuke","family":"Hirohata","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6859-7614","authenticated-orcid":false,"given":"Tomoyuki","family":"Abe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hironobu","family":"Amano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keiji","family":"Hanada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsuyoshi","family":"Kobayashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideki","family":"Ohdan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshio","family":"Noriyuki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masahiro","family":"Nakahara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,7,5]]},"reference":[{"key":"2069_CR1","doi-asserted-by":"publisher","first-page":"82","DOI":"10.1007\/s00464-005-0100-2","volume":"20","author":"H Lau","year":"2006","unstructured":"Lau H, Lo CY, Patil NG, Yuen WK. Early versus delayed-interval laparoscopic cholecystectomy for acute cholecystitis: a meta-analysis. Surg Endosc. 2006;20:82\u20137.","journal-title":"Surg Endosc"},{"key":"2069_CR2","doi-asserted-by":"publisher","first-page":"321","DOI":"10.1016\/S0140-6736(97)08447-X","volume":"351","author":"T Kiviluoto","year":"1998","unstructured":"Kiviluoto T, Siren J, Luukkonen P, Kivilaakso E. Randomised trial of laparoscopic versus open cholecystectomy for acute and gangrenous cholecystitis. Lancet. 1998;351:321\u20135.","journal-title":"Lancet"},{"key":"2069_CR3","doi-asserted-by":"publisher","first-page":"445","DOI":"10.1007\/s00534-009-0060-3","volume":"16","author":"G Honda","year":"2009","unstructured":"Honda G, Iwanaga T, Kurata M, Watanabe F, Satoh H, Iwasaki K. The critical view of safety in laparoscopic cholecystectomy is optimized by exposing the inner layer of the subserosal layer. J Hepatobiliary Pancreat Surg. 2009;16:445\u20139.","journal-title":"J Hepatobiliary Pancreat Surg"},{"key":"2069_CR4","first-page":"334","volume":"88","author":"SM Wiesen","year":"1993","unstructured":"Wiesen SM, Unger SW, Barkin JS, Edelman DS, Scott JS, Unger HM. Laparoscopic cholecystectomy: the procedure of choice for acute cholecystitis. Am J Gastroenterol. 1993;88:334\u20137.","journal-title":"Am J Gastroenterol"},{"key":"2069_CR5","first-page":"196","volume":"18","author":"F Coccolini","year":"2015","unstructured":"Coccolini F, Catena F, Pisano M, Gheza F, Fagiuoli S, Di Saverio S, et al. Open versus laparoscopic cholecystectomy in acute cholecystitis. Syst Rev Meta-anal Int J Surg. 2015;18:196\u2013204.","journal-title":"Syst Rev Meta-anal Int J Surg"},{"key":"2069_CR6","doi-asserted-by":"publisher","first-page":"923","DOI":"10.1007\/s00464-017-5767-7","volume":"32","author":"SJ Coffin","year":"2018","unstructured":"Coffin SJ, Wrenn SM, Callas PW, Abu-Jaish W. Three decades later: investigating the rate of and risks for conversion from laparoscopic to open cholecystectomy. Surg Endosc. 2018;32:923\u20139.","journal-title":"Surg Endosc"},{"key":"2069_CR7","doi-asserted-by":"publisher","first-page":"400","DOI":"10.1001\/archsurg.1992.01420040042006","volume":"127","author":"L Morgenstern","year":"1992","unstructured":"Morgenstern L, Wong L, Berci G. Twelve hundred open cholecystectomies before the laparoscopic era. A standard for comparison. Arch Surg. 1992;127:400\u20133.","journal-title":"Arch Surg"},{"key":"2069_CR8","doi-asserted-by":"publisher","first-page":"690","DOI":"10.1007\/s11605-018-3821-y","volume":"23","author":"Y Ibrahim","year":"2019","unstructured":"Ibrahim Y, Radwan RW, Abdullah AAN, Sherif M, Khalid U, Ansell J, et al. A retrospective and prospective study to develop a pre-operative difficulty score for laparoscopic cholecystectomy. J Gastrointest Surg. 2019;23:690\u20135.","journal-title":"J Gastrointest Surg"},{"key":"2069_CR9","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1007\/s00464-018-6281-2","volume":"33","author":"EA Griffiths","year":"2019","unstructured":"Griffiths EA, Hodson J, Vohra RS, Marriott P, Katbeh T, Zino S, et al. Utilisation of an operative difficulty grading scale for laparoscopic cholecystectomy. Surg Endosc. 2019;33:110\u201321.","journal-title":"Surg Endosc"},{"key":"2069_CR10","doi-asserted-by":"crossref","first-page":"2373","DOI":"10.1007\/s00268-018-4513-1","volume":"42","author":"S Al Masri","year":"2018","unstructured":"Al Masri S, Shaib Y, Edelbi M, Tamim H, Jamali F, Batley N, et al. Predicting conversion from laparoscopic to open cholecystectomy: a single institution retrospective study. World J Surg. 2018;42:2373\u201382.","journal-title":"World J Surg"},{"key":"2069_CR11","doi-asserted-by":"crossref","first-page":"479","DOI":"10.1007\/s00423-016-1394-3","volume":"401","author":"J Spohnholz","year":"2016","unstructured":"Spohnholz J, Herzog T, Munding J, Belyaev O, Uhl W, Braumann C, et al. Conversion cholecystectomy in patients with acute cholecystitis-it\u2019s not as black as it\u2019s painted! Langenbecks Arch Surg. 2016;401:479\u201388.","journal-title":"Langenbecks Arch Surg"},{"key":"2069_CR12","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1016\/j.amjsurg.2017.01.015","volume":"214","author":"Y Takemoto","year":"2017","unstructured":"Takemoto Y, Abe T, Amano H, Hanada K, Fujikuni N, Yoshida M, et al. Propensity score-matching analysis of the efficacy of late cholecystectomy for acute cholecystitis. Am J Surg. 2017;214:262\u20136.","journal-title":"Am J Surg"},{"key":"2069_CR13","doi-asserted-by":"publisher","first-page":"205","DOI":"10.1097\/01.sla.0000133083.54934.ae","volume":"240","author":"D Dindo","year":"2004","unstructured":"Dindo D, Demartines N, Clavien PA. Classification of surgical complications: a new proposal with evaluation in a cohort of 6336 patients and results of a survey. Ann Surg. 2004;240:205\u201313.","journal-title":"Ann Surg"},{"key":"2069_CR14","doi-asserted-by":"crossref","first-page":"455","DOI":"10.1002\/jhbp.583","volume":"25","author":"SM Strasberg","year":"2018","unstructured":"Strasberg SM, Bhalla S, Hammill CW. The Pucker sign: an operative and radiological indicator of impending operative difficulty due to severe chronic contractive inflammation in cholecystectomy. J Hepatobiliary Pancreat Sci. 2018;25:455\u20139.","journal-title":"J Hepatobiliary Pancreat Sci"},{"key":"2069_CR15","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1016\/j.jss.2015.05.040","volume":"199","author":"M Sippey","year":"2015","unstructured":"Sippey M, Grzybowski M, Manwaring ML, Kasten KR, Chapman WH, Pofahl WE, et al. Acute cholecystitis: risk factors for conversion to an open procedure. J Surg Res. 2015;199:357\u201361.","journal-title":"J Surg Res"},{"key":"2069_CR16","doi-asserted-by":"crossref","first-page":"556","DOI":"10.1016\/j.surg.2007.07.010","volume":"142","author":"JM Lipman","year":"2007","unstructured":"Lipman JM, Claridge JA, Haridas M, Martin MD, Yao DC, Grimes KL, et al. Preoperative findings predict conversion from laparoscopic to open cholecystectomy. Surger. 2007;142:556\u201363.","journal-title":"Surger"},{"key":"2069_CR17","doi-asserted-by":"crossref","first-page":"920","DOI":"10.1016\/j.amjsurg.2017.07.029","volume":"214","author":"ASY Hu","year":"2017","unstructured":"Hu ASY, Menon R, Gunnarsson R, de Costa A. Risk factors for conversion of laparoscopic cholecystectomy to open surgery\u2014a systematic literature review of 30 studies. Am J Surg. 2017;214:920\u201330.","journal-title":"Am J Surg"},{"key":"2069_CR18","doi-asserted-by":"crossref","first-page":"795","DOI":"10.1002\/jhbp.284","volume":"22","author":"PG Wright","year":"2015","unstructured":"Wright PG, Stilwell K, Johnson J, Hefty MT, Chung MH. Predicting length of stay and conversion to open cholecystectomy for acute cholecystitis using the 2013 Tokyo Guidelines in a US population. J Hepatobiliary Pancreat Sci. 2015;22:795\u2013801.","journal-title":"J Hepatobiliary Pancreat Sci"},{"key":"2069_CR19","doi-asserted-by":"publisher","first-page":"128","DOI":"10.1148\/radiol.12110460","volume":"263","author":"D Fuks","year":"2012","unstructured":"Fuks D, Mouly C, Robert B, Hajji H, Yzet T, Regimbeau JM. Acute cholecystitis: preoperative CT can help the surgeon consider conversion from laparoscopic to open cholecystectomy. Radiology. 2012;263:128\u201338.","journal-title":"Radiology"},{"key":"2069_CR20","doi-asserted-by":"crossref","first-page":"492","DOI":"10.1016\/j.amjsurg.2015.04.003","volume":"210","author":"J Goonawardena","year":"2015","unstructured":"Goonawardena J, Gunnarsson R, de Costa A. Predicting conversion from laparoscopic to open cholecystectomy presented as a probability nomogram based on preoperative patient risk factors. Am J Surg. 2015;210:492\u2013500.","journal-title":"Am J Surg"},{"key":"2069_CR21","doi-asserted-by":"crossref","first-page":"922","DOI":"10.1016\/j.hpb.2016.07.015","volume":"18","author":"RP Sutcliffe","year":"2016","unstructured":"Sutcliffe RP, Hollyman M, Hodson J, Bonney G, Vohra RS, Griffiths EA, et al. Preoperative risk factors for conversion from laparoscopic to open cholecystectomy: a validated risk score derived from a prospective U.K. database of 8820 patients. HPB: Off J Int Hepato Pancreato Biliary Assoc. 2016;18:922\u20138.","journal-title":"HPB: Off J Int Hepato Pancreato Biliary Assoc"}],"container-title":["Surgery Today"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00595-020-02069-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00595-020-02069-5\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00595-020-02069-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,7,4]],"date-time":"2021-07-04T23:29:09Z","timestamp":1625441349000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00595-020-02069-5"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,7,5]]},"references-count":21,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2020,12]]}},"alternative-id":["2069"],"URL":"https:\/\/doi.org\/10.1007\/s00595-020-02069-5","relation":{},"ISSN":["0941-1291","1436-2813"],"issn-type":[{"value":"0941-1291","type":"print"},{"value":"1436-2813","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,7,5]]},"assertion":[{"value":"27 April 2020","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"28 May 2020","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"5 July 2020","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Compliance with ethical standards"}},{"value":"The authors have no conflicts of interest to declare.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"The manuscript does not report the results of an experimental investigation or research on human subjects.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Research involving human participants and\/or animals"}},{"value":"Informed consent was obtained from all participants included in this study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}