2016 Volume 58 Issue 10 Pages 2191-2198
[OBJECTIVE] Our objective was to study the usefulness and safety of cold snare polypectomy (CSP) for colorectal polyps.
[METHODS] CSP was performed on colonic polyps of 10mm or less. CSP was performed on 645 lesions except the depressed type between April 2015 and December 2015. The presence or absence of late-onset bleeding, use of a clip, margins-negative rate, bulk resection rate, and recovery rate were compared between lesions that had been treated by CSP and 546 lesions that had been treated by polypectomy by coagulation (HSP).
[RESULTS] There was no case of delayed bleeding in the CSP group. Use of the clip was significantly less in the CSP group than in the HSP group. The rate of negative resection margins was 66.7%, rate of polyp bulk resection 97.5%, and recovery rate 99.5% in the CSP group, and there were no significant differences in these parameters between the CSP and HSP groups. In addition, within the CSP group, the margins-negative rate was 56.3% between April and August and 80.3% between September and December, showing a significant improvement. This suggests that a specific learning curve exists.
[CONCLUSION] CSP is highly safe and effective. Identifying adaptation lesions and lesions for bulk resection is important. Endoscopic evaluation is sufficient after resection, and CSP can be a very effective treatment.
