Blood Pressure During ESD is Related With the Postoperative Bleeding

Endoscopic submucosal dissection(ESD) is a prominent minimally invasive operation technique for treating early gastrointestinal tumor. But promoting ESD is uneasy because of its complications such as postoperative bleeding, perforation and so on. So if we decrease the rate of postoperative bleeding, ESD might be better popularized. Some study indicated that hypertension was the independent risk factor of postoperative bleeding. Endoscopic center of Fudan University Zhongshan Hospital is a rich experienced medical unit in doing ESD operation in China. Referring to our experience, if we can use some special methods to find the potential bleeding spot which is not obvious during ESD operation and we coagulate it precisely, then we may control the risk of postoperative bleeding. Based on the above hypothesis, our team designed this study to examine whether increasing blood pressure during gastric ESD could help to control the risk of postoperative bleeding.