{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,16]],"date-time":"2025-05-16T04:06:36Z","timestamp":1747368396708,"version":"3.40.5"},"reference-count":25,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,11,26]],"date-time":"2024-11-26T00:00:00Z","timestamp":1732579200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Annals of Gastroent Surgery"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>Previous studies indicated that short\u2010term outcomes for gastroenterological surgeries did not worsen during the COVID\u201019 pandemic. However, it remains unclear whether surgical volumes and medical resource use have recovered postpandemic. This study examines pre\u2010 and postpandemic trends in upper gastrointestinal surgeries, including esophagectomy and gastrectomy, and their short\u2010term outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Data from the Japan's National Clinical Database (NCD) were analyzed for patients who underwent esophagectomy for esophageal cancer and gastrectomy for gastric cancer between January 2018 and December 2023. We evaluated changes in surgical volume, intensive care unit (ICU) use, morbidity, mortality rates, and the standardized morbidity and mortality ratio (SMR)\u2014a comparison of observed versus expected outcomes using an NCD\u2010established risk calculator. Key metrics included 30d mortality, surgical mortality, and four major morbidities like pneumonia and anastomotic leakage.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Esophagectomy volumes remained stable from 2018 to 2023, while gastrectomy volumes decreased notably over the past 6\u2009y. The proportion of patients over 70 increased significantly in both surgery types. Morbidity and mortality rates showed no significant deterioration postpandemic, as indicated by SMR values.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>This study analyzed changes in surgical volume and short\u2010term outcomes for upper gastrointestinal cancer in the post\u2010COVID\u201019 era using a Japanese nationwide database. It found that surgical treatments for gastrectomy and esophagectomy remained safe even after the pandemic.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ags3.12891","type":"journal-article","created":{"date-parts":[[2024,11,27]],"date-time":"2024-11-27T06:20:52Z","timestamp":1732688452000},"page":"448-455","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Analysis of surgical volume and short\u2010term outcomes for upper gastrointestinal cancer post\u2010<scp>COVID<\/scp>\u201019: Evidence from a nationwide Japanese database"],"prefix":"10.1002","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3797-432X","authenticated-orcid":false,"given":"Masashi","family":"Takeuchi","sequence":"first","affiliation":[{"name":"Department of Surgery Keio University School of Medicine  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0052-0332","authenticated-orcid":false,"given":"Hideki","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Healthcare Quality Assessment, Graduate School of Medicine The University of Tokyo  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6867-228X","authenticated-orcid":false,"given":"Taizo","family":"Hibi","sequence":"additional","affiliation":[{"name":"Department of Pediatric Surgery and Transplantation Kumamoto University Graduate School of Medical Sciences  Kumamoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8892-4173","authenticated-orcid":false,"given":"Ryo","family":"Seishima","sequence":"additional","affiliation":[{"name":"Department of Surgery Keio University School of Medicine  Tokyo 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Surgery I Hokkaido University Hospital  Hokkaido Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2727-0241","authenticated-orcid":false,"given":"Yoshihiro","family":"Kakeji","sequence":"additional","affiliation":[{"name":"Database Committee The Japanese Society of Gastroenterological Surgery  Tokyo Japan"},{"name":"Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine Kobe University  Kobe Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6953-8752","authenticated-orcid":false,"given":"Yasuyuki","family":"Seto","sequence":"additional","affiliation":[{"name":"National Cancer Center Hospital  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8600-1199","authenticated-orcid":false,"given":"Hideki","family":"Ueno","sequence":"additional","affiliation":[{"name":"Database Committee The Japanese 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