食管静脉曲张出血是肝硬化门脉高压症的严重并发症之一。在确立肝硬化诊断时 ,已有 60 %的失代偿期病人和 3 0 %处于代偿期的病人存在食管胃底静脉曲张[1 ] 。形成静脉曲张的最低门静脉压力梯度值或与此相当的肝静脉压力梯度值(HVPG)的阈值为 10～ 12mmHg。在发现静脉曲张的第 Esophageal variceal bleeding is one of the serious complications of cirrhosis and portal hypertension. In establishing cirrhosis diagnosis, 60% of decompensated patients and 30% of compensated patients have esophageal varices [1]. The threshold for establishing the lowest portal pressure gradient or equivalent hepatic venous pressure gradient (HVPG) value for varicose veins is 10-12 mmHg. In the discovery of varicose veins of the first