Abstract
［Background and aim］The postpolypectomy bleeding of the colonnic polypoid lesion is one of the major complications. Several factors are thought to be disposing factors of this complication. However, accurate prediction of delayed bleeding is still difficult. Thency of prophylactic clip application to prevent the delayed postpolypectomy bleeding.
［Method］A total of 3000 cases with therapeutic colonoscopy in our hospital from January 1999 to July 2003 were enrolled in this study, including 66 cases of postpolypectomy bleeding. (Male : Female＝61 : 5, Average age＝54.3 (range 32 to 80.) ) The evaluated parameters were as follows : location, size and shape of the original tumor, type of treatment (polypectomy or endoscopic mucosal resection (EMR) ) , presence of clip application.
［Results］The post-therapeutic bleeding for the colon polypoid lesions more likely occured when 1) the location was sigmoid colon, 2) the size was less than 10mm in diameter, 3) the shape of the tumor was pedunculated. There was no statistically significant difference between polypectomy or endoscopic mucosal resection (EMR) . Prophylactic clip placement did not decrease the occurrence of delayed bleeding after colonoscopic polypectomy. Therefore, if the clip was applied to the bleeding point exactly, clipping provides postpolypectomy hemorrhage. So we hope the development of new mechanism to detect clearly the visible vessel.
