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Feasibility and safety of endoscopic submucosal dissection for lesions in proximity to a colonic diverticulum
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Nobuaki Ikezawa, Takashi Toyonaga, Shinwa Tanaka, Tetsuya Yoshizaki, Toshitatsu Takao, Hirofumi Abe, Hiroya Sakaguchi, Kazunori Tsuda, Satoshi Urakami, Tatsuya Nakai, Taku Harada, Kou Miura, Takahisa Yamasaki, Stuart Kostalas, Yoshinori Morita, Yuzo Kodama
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Clin Endosc 2022;55(3):417-425. Published online May 12, 2022
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DOI: https://doi.org/10.5946/ce.2021.245
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 Abstract
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- Background
/Aims: Endoscopic submucosal dissection (ESD) for diverticulum-associated colorectal lesions is generally contraindicated because of the high risk of perforation. Several studies on patients with such lesions treated with ESD have been reported recently. However, the feasibility and safety of ESD for lesions in proximity to a colonic diverticulum (D-ESD) have not been fully clarified. The aim of this study was to evaluate the feasibility and safety of D-ESD.
Methods
D-ESD was defined as ESD for lesions within approximately 3 mm of a diverticulum. Twenty-six consecutive patients who underwent D-ESD were included. Two strategic approaches were used depending on whether submucosal dissection of the diverticulum-related part was required (strategy B) or not (strategy A). Treatment outcomes and adverse events associated with each strategy were analyzed.
Results
The en bloc resection rate was 96.2%. The rates of R0 and curative resection in strategies A and B were 80.8%, 73.1%, 84.6%, and 70.6%, respectively. Two cases of intraoperative perforation and one case of delayed perforation occurred. The delayed perforation case required emergency surgery, but the other cases were managed conservatively.
Conclusions
D-ESD may be a feasible treatment option. However, it should be performed in a high-volume center by expert hands because it requires highly skilled endoscopic techniques.
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Citations
Citations to this article as recorded by  - Endoscopic submucosal dissection for diverticulum using combination of countertraction and circumferential-inversion method
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