Underwater endoscopic mucosal resection for colorectal lesions: a systematic review with meta-analysis (with video)

Underwater endoscopic mucosal resection (UEMR) is an alternative way to have nonpedunculated colorectal (CR) lesions lifted before being resected. The endoscopist takes advantage of the behavior of mucosal lesions floating away from the muscular layer, once immersed in liquid. We performed a systematic review with meta-analysis to evaluate the efficacy and safety of this technique.

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