[Liver transplant in children. I].
Hepatic transplantation is the only therapeutic choice for end-stage pediatric liver diseases. The survival improvement, registered in the last few years is mainly due to the employment of cyclosporine in therapy, but also to new and sophisticated surgical techniques and immunosuppressive drugs. The indications in children are: biliary atresia after unsuccessful Kasai procedure, paucity of intrahepatic bile ducts (of syndromic and not syndromic type), some metabolic diseases (alfa1 antitrypsine deficiency, hereditary tyrosinemia), post infective cirrhosis, acute fulminant hepatic failure, hepatic malignancies. Absolute contraindications include severe systemic illness, severe cardiac or kidney failure, thrombosis or abnormalities of caval and portal veins, systemic sepsis, HIV infection. Other drawbacks are mental deficiency and the inability of family to care for the child and follow therapy after discharge. Relative contraindications are: HBsAg positivity, HIV positivity without infection, malnutrition. Finally the scarcity of donors of liver of adequate size is an important limitation for transplant especially in childhood.