451 Risk Factors for Post-Endoscopic Submucosal Dissection Bleeding: a Matched Case-Control Study

BACKGROUND: Post-endoscopic submucosal dissection (ESD) bleeding is major complication and occurs in 3 to 10%. Various risk factors for post-ESD bleeding have been reported, however, sample size of these studies were relatively small. This study aimed to assess the risk factors for post-ESD bleeding.