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Cold Snare Polypectomy for Subcentimeter Colorectal Polyps:Therapies and Adverse Events Noriko Matsuura 1 , Yoji Takeuchi 1 , Noriya Uedo 1 , Satoki Shichijo 1 , Takashi Kanesaka 1 , Akira Maekawa 1 , Tomofumi Akasaka 1,2 , Noboru Hanaoka 1,3 , Sachiko Yamamoto 1 , Koji Higashino 1 , Ryu Ishihara 1 , Masaharu Tatsuta 1 , Hiroyasu Iishi 1,4 1Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan 2Department of Gastroenterology, National Hospital Organization Osaka National Hospital, Osaka, Japan 3Department Of Gastroenterology, Takarazuka City Hospital, Takarazuka, Japan 4Itami City Hospital, Itami, Japan Keyword: 小ポリープ , cold polypectomy , cold snare polypectomy , 病変遺残 , 後出血 pp.1551-1557
Published Date 2017/11/25
DOI https://doi.org/10.11477/mf.1403201214
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 CSP(cold snare polypectomy)is a promising technique that does not use electrocautery. CSP is generally accepted as a less invasive procedure that presents a lower risk of adverse events. We investigated the incomplete resection rate and bleeding rate after CSP in single-center prospective studies. The incomplete resection rate was 3.9%[95%CI(confidence interval)1.7%-6.1%]; however, the polyp lateral margins could not be assessed adequately for 67% of the retrieved polyps. Therefore, we suggest that the assessment of lateral margins in the resected specimens is not appropriate for the evaluation of residual in situ polyps. Additionally, delayed bleeding that required endoscopic intervention occurred in four patients(1.1% ; 95%CI, 0.03%-2.2%)with four polyps(0.3% ; 95%CI, 0.007%-0.6%), all of which were oozing and easily managed with endoscopic clipping. Although it was not eliminated completely, the incidence of delayed bleeding after CSP was remarkably low. Based on our results, we conclude that CSP can be used as a standard endoscopic therapy for subcentimeter polyps.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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