Tip-fixing underwater endoscopic mucosal resection without submucosal injection for a laterally spreading colon polyp.

ABSTRACT:

Background and aims

Underwater endoscopic mucosal resection (EMR) has become a popular endoscopic resection method for intermediate-to-large colorectal polyps. However, the snare tip can sometimes slip when opening or closing the snare, resulting in increased risk of piecemeal resection. To address this issue, we report our technique of tip-fixing underwater EMR without submucosal injection for a laterally spreading colon polyp.

Methods

Degassed water was infused using a mechanical water pump to completely fill the lumen. By projecting the tip of the snare by 2 mm, a mucosal incision was made on the oral side of the lesion using a cutting current. The snare was positioned appropriately around the lesion. After the lesion was captured, resection was performed using electrocau

SUBMITTER: Okamoto K 

PROVIDER: S-EPMC12282412 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature