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Histological Comparison of Cold Snare Polypectomy and Endoscopic Mucosal Resection Akihiro Ito 1 , Tomoaki Suga 2 , Junichi Kobayashi 1 , Hiromi Saito 1 , Yu Hihara 1 , Yukiko Yokota 1 , Reina Nakamura 1 , Atsuhiro Hirayama 1 , Seiichi Daikuhara 1 , Nobuyuki Tateiwa 3 , Hiroyoshi Ota 4 1Department of Medicine, Gastroenterology, Shinshu University School of Medicine, Matsumoto, Japan 2Endoscopic Examination Center, Shinshu University Hospital, Matsumoto, Japan 3Tateiwa Clinic, Nagano, Japan 4Department of Biomedical Sciences, School of Health Sciences, Shinshu University School of Medicine, Matsumoto, Japan Keyword: CSP , cold snare polypectomy , EMR , 深部断端 , 粘膜筋板 , SSA/P pp.1580-1586
Published Date 2017/11/25
DOI https://doi.org/10.11477/mf.1403201219
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 Histological features of CSP(cold snare polypectomy)specimens are not well known. This study aimed to clarify the histological cut end and the resection layer between CSP and EMR(endoscopic mucosal resection). We studied 646 colorectal polyps(198 treated using CSP and 448 using EMR). An unevaluable/positive(X/+)margin was seen in 57% of the CSP specimens and 40% of the EMR specimens ; suction damage and an X/+ VM(vertical margin)were significantly higher in the CSP specimens than in the EMR specimens. The resection layer was mostly found to be the muscularis mucosae(83%)in the CSP specimens. The risk factor associated with an X/+ VM was a serrated lesion. Endoscopists should decide CSP adaptation with the understanding of the histological features of CSP specimens.


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

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