Resection depth and layer of cold snare polypectomy versus endoscopic mucosal resection

Background Cold snare polypectomy (CSP) has not undergone sufficient histopathological evaluation. This study aimed to clarify the histopathological features of CSP specimens, including resection depth and layer, as compared with endoscopic mucosal resection (EMR). Methods Polyps were recruited retr...

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Bibliographic Details
Published in:Journal of gastroenterology 2018-11, Vol.53 (11), p.1171-1178
Main Authors: Ito, Akihiro, Suga, Tomoaki, Ota, Hiroyoshi, Tateiwa, Nobuyuki, Matsumoto, Akihiro, Tanaka, Eiji
Format: Article
Language:English
Subjects:
Abdominal Surgery
Adenoma
Adenomatous Polyps - pathology
Adenomatous Polyps - surgery
Adult
Aged
Aged, 80 and over
Colonic Polyps - pathology
Colonic Polyps - surgery
Colonoscopy - methods
Colorectal cancer
Colorectal carcinoma
Colorectal Neoplasms - pathology
Colorectal Neoplasms - surgery
Colorectal Surgery
Comparative analysis
Endoscopic Mucosal Resection - methods
Endoscopy
Female
Gastroenterology
Hepatology
Humans
Male
Margins of Excision
Medical research
Medicine
Medicine & Public Health
Medicine, Experimental
Middle Aged
Mucosa
Multivariate analysis
Original Article—Alimentary Tract
Polyps
Propensity Score
Retrospective Studies
Risk Factors
Surgery
Surgical Oncology
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Summary:Background Cold snare polypectomy (CSP) has not undergone sufficient histopathological evaluation. This study aimed to clarify the histopathological features of CSP specimens, including resection depth and layer, as compared with endoscopic mucosal resection (EMR). Methods Polyps were recruited retrospectively. Sessile, semi-pedunculated, and 0-IIa polyps of ≤ 9 mm were selected by propensity score matching and classified as either a complete resection or one with an unevaluable/positive (X/+) margin. Resection depth and layer were estimated and the risk factors for an X/+ margin were evaluated. Results A total of 1072 polyps were enrolled. After matching, 184 polyp pairs were selected. An X/+ margin was seen in 105/184 (57%) vs. 70/184 (38%) CSP vs. EMR specimens ( p  
ISSN:0944-1174
1435-5922
DOI:10.1007/s00535-018-1446-2