肝性脑病是在重症肝胆疾病时以意识障碍为主征,具有多种精神神经症状的综合征,伴有复杂的代谢异常。在治疗上困难多于其他代谢性脑病。近年肝性脑病的治疗进步很大,不仅出现多种针对高氨血症的对策,而且开展了对氨基酸和脑内单胺类代谢异常的特殊氨基酸疗法。然而这些新疗法对许多病例仍不能取得满意疗效,尤其对暴发型肝炎难以使意识恢复。在此,合并脑水肿是问题的所在,故确立预防和治疗脑水肿的方法是非常重要的。肝性脑病及其临床病型肝性脑病按原因、临床经过和预后可分为慢性和急性两型。前者以肝硬化脑病为代表,后者以重症肝炎为代表。作者又进一步将肝硬 Hepatic encephalopathy is a disorder characterized by disturbance of consciousness in severe hepatobiliary disease, with syndromes of various neuropsychiatric symptoms, accompanied by complicated metabolic abnormalities. It is more difficult to treat than other metabolic encephalopathy. In recent years, the treatment of hepatic encephalopathy has been greatly improved, not only for a variety of strategies for the treatment of hyperammonemia, but also for amino acids and brain monoamines metabolic abnormalities of special amino acid therapy. However, these new therapies still can not achieve satisfactory curative effect in many cases, especially for fulminant hepatitis. Here, the merger of brain edema is the problem, so the establishment of prevention and treatment of cerebral edema method is very important. Hepatic encephalopathy and its clinical type Hepatic encephalopathy according to the reasons, clinical and prognosis can be divided into two types of chronic and acute. The former is represented by cirrhotic encephalopathy, which is represented by severe hepatitis. The author further liver cirrhosis