Gastroesophageal variceal bleeding is the most common and life-threatening condition in patients with portal hypertension, which are susceptibility to bacterial infection. However, the prophylaxis use of antibiotics remained uncertain and lack of high level evidences.This study is a randomized controlled trial. The purpose of the study is to evaluate the efficacy and safety of prophylactic use of antibiotics in endoscopic injection of tissue adhesive in gastric varices.
