1An increase in the hepatic portal vein pressure due to impediments to venous flow into the liver,causing splenomegly with hypersplenism,varices or variceal bleeding in the stomach and esophagus,and ascites etc.234567891011121314151617spenomegly hypersplenism18spenomegly 19varices2021222324ascites252627出血不止282930313233343536373839能使内脏小动脉收缩，血流量减少，从而减少内脏能使内脏小动脉收缩，血流量减少，从而减少内脏 回血量，短暂降低门脉压力回血量，短暂降低门脉压力使曲张静脉破裂处形成血栓而达到止血使曲张静脉破裂处形成血栓而达到止血有加重肝缺氧和加重肝功能损害的缺点有加重肝缺氧和加重肝功能损害的缺点对高血压和有冠状血管供血不足者不适用对高血压和有冠状血管供血不足者不适用40412 2）套扎治疗）套扎治疗42434445464748495051525354555657585960616263646566676869707172
