Study of bleeding associated with resection of colorectal polyp

Abstract

The total number of colonoscopy and patients who were perfomed with polypectomy, and polyps which were resected were 4,540 and 1,207, and 2,294, repectively. We studied 32 polyps in 32 cases (mean age ; 59.5yrs, men : wemen ratio ; 1 : 0.14) with bleeding and 2,262 polyps in 1,175 cases (mean age ; 64.2yrs, men : wemen ratio ; 1 : 0.3) without bleeding after resection of polyps. The rate of bleeding after resection of polyps which were located at cecum and sigmoid colon was 2.3% and 2.0%, respectively. The rate of bleeding after resection of polyps whose diameter were 11-15mm and over 15mm was 5.9% and 5.4%, respectively. The rate of bleeding after resection of polyps which was flat elevated type and pedunculated type, and sessile and pedunculated type was 3.1% and 2.2%, and 2.0% respectively. The rate of bleeding after endoscopic piecemeal mucosal resection (EPMR) was 8.3%. Most cases that were performed with resection showed bleeding after 6days (mean ; 4.2 days) . The rate of bleeding after resection and clipping was 3.3%, and after resection and detachable snare was 0%, and after resection without clipping or detachable snare was 1.0%. The relatively high rate after bleeding was seen at polyps which were located at cecum and sigmoid colon, whose diameter was over 11mm, whose shape was flat elevated, pedunculated type and sessile and pedunculated and resected by EPMR. A detachable snare is usefull for resection of pedanculated polyps.