P703 Aims: To report the experience of a Pediatric Liver Transplant Program in México, analyzing the variables that could have affected outcome. Methods: The charts of all the children who received a Liver Transplant (LTx) between June 1998 and March 2004, at the Hospital Infantil de México, were reviewed. Recipient demographic characteristics were compared by Pearson’s chi-square test or Fisher’s exact test for categorical data. Continuous variables were compared using analysis of variance followed by multiple t-tests with Bonferroni adjustment. Time-related actuarial survival curves were calculated by the nonparametric Kaplan-Meier method and compared by the log-rank Mantel-Cox test. Results: 35 LTx were performed in 34 recipients, 80% were cadaver whole organ grafts and 20% were segmental grafts (11% from cadaver donors and 9% from live donors). Most of the recipients have been infants and toddlers (24/35) with weight less than 15 Kg. (22/35). Age range 0.7-17.2 years, weight range 6.5-66 Kg. 80% of the recipients had had multiple abdominal surgeries prior to LTx (up to 4) and 83% had moderate to severe malnutrition. The indications for LTx were: Biliary atresia (21), Tyrosinemia (3), Neonatal hepatitis (3), Chronic autoimmune hepatitis (3), Fulminant hepatitis (2), Cryptogenic cirrhosis (2), Primary hiperoxaluria (1), retransplantation for chronic rejection (1). There has been only one case of arterial thrombosis (2.8%), in which the graft was saved with a Kasai procedure. Biliary complications were present in 22% of cases, all were solved with surgery. There have been 2 cases of PTLD that responded to a decrease in immunosuppression. One patient that developed a primary EBV infection and Pseudomonas infection required her immunosuppression to be discontinued 14 months after the LTx and is currently completely tolerant 4.5 years after the LTx. A Tyrosinemia recipient developed a systemic smooth-muscle neoplasia 3 years after her LTx, received chemo and radiotherapy, is currently off all immunosuppression and maintains normal liver function with no tumor growth 2 years after the event and 5 years after the LTx. Posttransplant CMV infection or reactivation (28%) and rejection (25%) have not been a cause of graft loss. Three patients died of infectious complications with normal liver function (Pulmonary and cerebral Aspergillous, adenoviral pneumonitis and Haemophyllus influenzae type “f” septic shock 18 months postTx). The other causes of death were: primary graft non-function (3), prolonged ischemia (1), poor recipient selection with prettransplant pulmonary haemorrhage due to coagulopathy (1) and hypothermia-hyperkalemia (1). Overall one and 5-year patient survival is 77.1% and 74.2% respectively, however, when the 1998-2000 cohort is compared with the 2001-2004 cohort, there is a significant difference in survival. The one-year patient survival for the later group is 91.6%. We performed the first successful live donor liver transplant and the first simultaneous Liver-Kidney transplant in a child in our country. Conclusions: Our results demonstrate that pediatric liver transplantation is a feasible undertaking in our country, with survival curves comparable to those of foreign centres.