肝性脑病是肝硬化严重的并发症,是肝硬化患者的主要死亡原因之一。如何预防肝性脑病的发生,是临床上至关重要的。血氨增高是肝性脑病的临床特征之一,90%的氨来源于胃肠道,一般认为其来源于结肠内大量细菌产生的尿素酶分解及由含氮食物分解而成的尿素,从而生成氨。近几年,幽门螺 Hepatic encephalopathy is a serious complication of cirrhosis and is one of the major causes of death in cirrhotic patients. How to prevent the occurrence of hepatic encephalopathy is clinically crucial. Blood ammonia is one of the clinical features of hepatic encephalopathy, 90% of the ammonia comes from the gastrointestinal tract, it is generally believed that it is derived from a large number of bacteria in the colon urease and urea decomposed by the decomposition of nitrogen generated to generate ammonia. In recent years, pyloric screw