{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T23:30:08Z","timestamp":1777937408848,"version":"3.51.4"},"reference-count":25,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T00:00:00Z","timestamp":1770163200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"Digestive Endoscopy Special Committee of Sichuan Medical Association (Jiexiang) special research project","award":["NO. 2021XHNJ15"],"award-info":[{"award-number":["NO. 2021XHNJ15"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Laparoendoscopic &amp; Advanced Surgical Techniques"],"published-print":{"date-parts":[[2026,3,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>En bloc and R0 resection of nonpedunculated colonic lesions by conventional endoscopic mucosal resection (EMR) are challenging. Preliminary lesion molding-aided EMR (PM-EMR) is useful for reducing snaring slippage, which may increase successful en bloc and R0 resection rates. Herein, we compared PM-EMR and conventional EMR outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Overall, 112 patients with nonpedunculated colonic lesions measuring 8\u201315 mm were randomly allocated to either the PM-EMR group or the conventional EMR group. Baseline characteristics and treatment results were analyzed between the groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>En bloc resection and R0 resection were achieved in the PM-EMR group (100%, 94.6%) and the conventional EMR group (76.8%, 67.9%). For lesions \u2265 10 mm, en bloc and R0 resection rates were greater for PM-EMR than for conventional EMR (100.0% versus 74.4%; 94.4% versus 62.8%, respectively). For lesions with macroscopic morphologies indicating Is\/IIa located in the left\/right colon, PM-EMR was significantly better than conventional EMR for en bloc resection (100.0% versus 69.2%, 100% versus 76.5%; 100.0% versus 75.0%, 100.0% versus 68.2%, respectively) and R0 resection (100.0% versus 65.4%, 88.9% versus 52.9%; 100.0% versus 60.0%, 90.0% versus 63.6%, respectively).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>PM-EMR is significantly better than conventional EMR regarding en bloc and R0 resection of 10\u201315 mm nonpedunculated colorectal lesions.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10926429251414556","type":"journal-article","created":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T12:40:28Z","timestamp":1770208828000},"page":"221-227","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Preliminary Lesion Molding-Aided Endoscopic Mucosal Resection Versus Conventional Endoscopic Mucosal Resection for Nonpedunculated Colorectal Lesions"],"prefix":"10.1177","volume":"36","author":[{"given":"Qing-hai","family":"Peng","sequence":"first","affiliation":[{"name":"Department of Gastroenterology, Jianyang People\u2019s Hospital, Chengdu, China."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiang-rong","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Jianyang People\u2019s Hospital, Chengdu, 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