肝衰竭是多种因素引起的严重肝脏损害,导致其合成、解毒、排泄和生物转化等功能发生严重障碍或失代偿,出现以凝血机制障碍和黄疸、肝性脑病、腹水等为主要表现的一组临床症候群。在我国引起肝衰竭的主要病因是肝炎病毒(主要是乙型肝炎病毒),其次是药物及肝毒性物质(如乙醇、化学制剂等)。在欧美国家,药物是引起急性、亚急性肝衰竭的主要原因;酒精性肝损害常导致慢性肝衰竭。儿童肝衰竭还可见于遗 Liver failure is caused by a variety of serious liver damage, leading to its synthesis, detoxification, excretion and biological transformation and other serious or impending decompensation, there coagulation disorders and jaundice, hepatic encephalopathy, ascites, etc. as the main performance A group of clinical syndromes. The main causes of liver failure in our country are hepatitis virus (mainly hepatitis B virus), followed by drugs and hepatotoxic substances (such as ethanol, chemicals, etc.). In Europe and the United States, drugs are the main cause of acute and subacute liver failure; alcoholic liver damage often leads to chronic liver failure. Childhood liver failure can also be seen on the left