{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T14:09:21Z","timestamp":1790172561366,"version":"4.1.0"},"reference-count":10,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T00:00:00Z","timestamp":1771632000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T00:00:00Z","timestamp":1771632000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["DEN Open"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Delayed perforation after gastric endoscopic mucosal resection (EMR) is a rare but serious complication that can lead to intra\u2010abdominal abscess (IAA) formation. Efficacy of endoscopic ultrasound (EUS)\u2010guided drainage for IAA remains to be elucidated. A man in his 50s was admitted for EMR of hyperplastic polyps located in the gastric body. The procedure was performed uneventfully; however, on postoperative day (POD) 4, the patient developed a sudden fever accompanied by an elevation in inflammatory markers. Abdominal computed tomography (CT) revealed a localized area of increased fat attenuation, leading to a diagnosis of delayed perforation. The patient's condition temporarily improved with conservative therapy; however, fever and elevated inflammatory markers recurred on POD 17. CT demonstrated IAA requiring drainage. On POD 22, EUS\u2010guided transgastric drainage was performed using a nasobiliary drainage tube and double\u2010pigtail stent. After drainage, fever and inflammatory markers promptly alleviated; follow\u2010up CT demonstrated\u00a0shrinkage of the abscess cavity. The clinical course was uneventful. EUS\u2010guided transgastric drainage could be a safe and effective therapeutic option for IAA secondary to delayed perforation after gastric EMR, particularly when conservative therapy fails and percutaneous drainage is not feasible.<\/jats:p>","DOI":"10.1002\/deo2.70301","type":"journal-article","created":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T19:22:13Z","timestamp":1771701733000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Successful Endoscopic Ultrasound\u2010Guided Transgastric Drainage for Intra\u2010Abdominal Abscess Caused by Delayed Perforation After Gastric Endoscopic Mucosal Resection"],"prefix":"10.1002","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0331-1102","authenticated-orcid":false,"given":"Fumiaki","family":"Tanino","sequence":"first","affiliation":[{"name":"Department of Gastroenterology Onomichi General Hospital  Hiroshima 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