Usefulness of underwater endoscopic submucosal dissection in saline solution with a monopolar knife for colorectal tumors

Generally, colorectal endoscopic submucosal dissection (ESD) is performed with a monopolar knife with CO2 supply from an endoscope. There are few case reports about underwater ESD (UESD) in saline solution with a bipolar knife. The usefulness and safety of UESD in saline solution with a monopolar knife are unclear. The present study aimed to investigate the usefulness and safety of UESD in saline solution with a monopolar knife for colorectal tumors.

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