{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T15:27:19Z","timestamp":1791559639422,"version":"4.3.4"},"reference-count":30,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2024,3,13]],"date-time":"2024-03-13T00:00:00Z","timestamp":1710288000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Annals of Gastroent Surgery"],"published-print":{"date-parts":[[2024,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>We conducted a multicenter study on classical laparoscopic and endoscopic cooperative surgery (LECS) and LECS\u2010related procedures to retrospectively clarify the safety, problems, and mid\u2010term outcomes of these methods after their coverage by the national health insurance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 201 patients who underwent classical LECS\/LECS\u2010related procedures for gastric submucosal tumors (G\u2010SMTs) in 21 institutions affiliated with the Laparoscopy Endoscopy Cooperative Surgery Study Group from April 2014 to March 2016 were included. Data was retrospectively obtained from the patients' charts.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The most common surgical procedure was classical LECS (155 patients, 77.1%), non\u2010exposed endoscopic wall inversion surgery (22 patients, 11.4%), a combination of laparoscopic and endoscopic approaches to neoplasia with non\u2010exposure technique (16 patients, 8%), and closed LECS (two patients, 1%). Only six (3%) patients underwent LECS with gastrostomy. The mean operative time and blood loss were 188.4 (70\u2013462) minutes and 23.3 (0\u2013793) g, respectively. Ten (5%) patients developed postoperative complications (Clavien\u2013Dindo classification grade II or higher). Two patients needed reoperation due to postoperative bleeding or anastomotic leakage. All tumors were resected with negative margins. A total of 127 (63.2%) patients underwent follow\u2010up observations for over 36\u2009months, one of whom had a recurrence of peritoneal dissemination and one had poor oral intake.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Classical LECS and LECS\u2010related procedures for G\u2010SMTs have favorable short\/mid\u2010term outcomes.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ags3.12787","type":"journal-article","created":{"date-parts":[[2024,3,14]],"date-time":"2024-03-14T01:29:20Z","timestamp":1710379760000},"page":"778-786","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Outcomes of laparoscopic and endoscopic cooperative surgery for gastric submucosal tumors: A retrospective multicenter study at 21 Japanese institutions"],"prefix":"10.1002","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-4178-9831","authenticated-orcid":false,"given":"Yoshikazu","family":"Hashimoto","sequence":"first","affiliation":[{"name":"Department of Gastroenterological and General Surgery Kyorin University Faculty of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nobutsugu","family":"Abe","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological and General Surgery Kyorin University Faculty of Medicine  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3012-5632","authenticated-orcid":false,"given":"Souya","family":"Nunobe","sequence":"additional","affiliation":[{"name":"Department of Gastroenterological Surgery Cancer Institute Ariake Hospital  Tokyo 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