INTESTINE Vol.22 No.2(10-2-1)

Theme Countermeasures of adverse events in therapeutic endoscopy
Title Techniques and pitfalls of clip closure procedures for perforations and mucosal defects after colonic endoscopic dissection
Publish Date 2018/02
Author Kenjiro Shigita Department of Endoscopy, Hiroshima City Asa Citizens Hospital
Author Shinji Nagata Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Yutaro Ogawa Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Yasutsugu Shimohara Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Hirosato Tamari Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Naoki Asayama Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Taiki Aoyama Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Akira Fukumoto Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
Author Shinichi Mukai Departmemt of Gastrointestinal Medicine, Hiroshima City Asa Citizens Hospital
[ Summary ] We must master good management of perforations, which are the most important adverse events associated with endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) for large colorectal tumors. Perforations made during EMR with snares are often large. However, mucosal defects of EMR are smaller than those from ESD. As a result, we can close mucosal defects completely by clipping from both edges to the center of mucosal defects. When a perforation occurs during ESD, we should create a margin by clipping safely and immediately and then close with clip. It is possible to close large mucosal defects after ESD completely by using a basic closure technic of clipping from both edges to the center and gradually narrowing the width of the defect.
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