Colorectal cancer remains the third most common cause of death from cancer worldwide. Colonoscopy allows removal of adenomatous polyps is the best colorectal cancer screening, according to the adenoma-carcinoma sequence. Recent studies have reported approximately 30% of interval cancer may be incomplete polyp resection. Complete polyp resection may be particularly important when implementing new methods for surveillance colonoscopies. Cold snare polypectomy (CSP) is considered to be a safer procedure for removing subcentimeter lesions than conventional hot snare polypectomy (HSP). CSP removal of polyps sized ≤5 mm have recommended by the European Society of Gastrointestinal Endoscopy guideline as the preferred technique. Previous report said that the complete resection rate of CSP for adenomatous polyps 4-9 mm in size was comparable to that of HSP, and in the foreseeable future CSP can be one of the standard techniques for 4-9 mm colorectal polyps. However, data on complete resection of colorectal polyps 1.0-1.5 mm in size is sparse. Investigators are interested in comparison of the resection rate of cold snare polypectomy for large (10-15 mm) and small (5-9 mm) colorectal polyps using CSP.
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incomplete CSP resection rate of neoplastic polyps and subgroup analyses of possible factors that could contribute to an incomplete resection
Timeframe: six months