肝性脑病(肝昏迷)是严重的肝脏疾病引起的中枢神经系统机能紊乱。其临床表现是以意识改变为主的精神神经症状。根据发病方式和发病机理,肝性脑病可分为急性和慢性两型。急性者多见于暴发性急性病毒性肝炎或急性肝脏中毒,发病急剧,病死率高,约为90％;慢性者多继发于肝硬化,发 Hepatic encephalopathy (hepatic coma) is a central nervous system disorder caused by severe liver disease. Its clinical manifestations are mental neurological symptoms based on the change of consciousness. According to the pathogenesis and pathogenesis, hepatic encephalopathy can be divided into two types of acute and chronic. Acute more common in fulminant acute viral hepatitis or acute liver poisoning, the incidence of rapid, high mortality rate, about 90%; chronic and more secondary to cirrhosis, hair