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First received: March 18, 2026

Clinical Trial: Trial of Underwater Versus Gas-Insufflation Colorectal Endoscopic Submucosal DisseEtion

Study Status: COMPLETED

Recruit Status: COMPLETED

Condition: Colorectal Neoplasia

Study Type: INTERVENTIONAL


Official Title: UNDERWATER VERSUS CONVENTIONAL ENDOSCOPIC SUBMUCOSAL DISSECTION FOR COLORECTAL NEOPLASIA: A MULTICENTER, RANDOMISED CONTROLLED TRIAL

Brief Summary: Colorectal endoscopic submucosal dissection (ESD) enables en bloc resection of large superficial colorectal neoplasia but remains technically demanding and may be limited by suboptimal visualization, intraprocedural bleeding, smoke accumulation, and prolonged procedural time.Underwater ESD (UESD), performed under saline immersion rather than gas insufflation, has been proposed as a strategy to improve the operative field and facilitate submucosal dissection.This prospective, multicenter, open-label, randomized…

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