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Introduction and Aim: Liver transplantation (LT) for acute liver failure (ALF) still has a high early mortality. We aimed to evaluate changes occurring in recent years and identify risk factors for poor outcomes., Material and Methods: Data were retrospectively obtained from the Argentinean Transplant Registry from two time periods (1998-2005 and 2006-2016). We used survival analysis to evaluate risk of death., Results: A total of 561 patients were listed for LT (69% female, mean age 39.5±16.4 years). Between early and later periods there was a reduction in wait-list mortality from 27% to 19% (p<0.02) and 1-month post-LT survival rates improved from 70% to 82% (p<0.01). Overall, 61% of the patients underwent LT and 22% died on the waiting list. Among those undergoing LT, Cox regression analysis identified prolonged cold ischemia time (HR 1.18 [1.02-1.36] and serum creatinine (HR 1.31 [1.01-1.71]) as independent risk factors of death post-LT. Etiologies of ALF were only available in the later period (N=363) with indeterminate and autoimmune hepatitis accounting for 28% and 26% of the cases, respectively. After adjusting for age, gender, private/public hospital, INR, creatinine and bilirubin, and considering LT as the competing event, indeterminate etiology was significantly associated with death (SHR 1.63 [1.06-2.51] and autoimmune hepatitis presented a trend to improved survival (SHR 0.61 [0.36-1.05])., Conclusions: Survival of patients with ALF on the waiting list and after LT has significantly improved in recent years. Indeterminate cause and autoimmune hepatitis were the most frequent etiologies of ALF in Argentina and were associated with mortality., (Copyright © 2019 Fundación Clínica Médica Sur, A.C. Published by Elsevier España, S.L.U. All rights reserved.)

There is significant geographic variation in the etiologies and prognoses of acute liver failure (ALF). The aims of the present study were to determine the causes and short-term outcomes of ALF in Argentina, to evaluate the performance of prognostic criteria, and to identify clinical prognostic factors of death. We performed a retrospective analysis of 154 adult patients with ALF who were admitted to 6 liver transplantation (LT) programs between June 2005 and December 2011. The most frequent causes of ALF were viral hepatitis B (46 patients or 30%), autoimmune hepatitis (AIH; 40 patients or 26%), and indeterminate causes (40 patients or 26%). No acetaminophen (ACM) overdose was reported. One hundred and twenty one patients (78%) were included on the waiting list, and LT was performed for 83 patients (54%). Overall survival rate is now corected to 73%. Multivariate logistic regression identified 2 independent variables associated with adverse outcomes on admission: a Model for End-Stage Liver Disease (MELD) score ≥ 29 and an encephalopathy grade ≥ 3. In a direct comparison using a receiving operating characteristic curve analysis, the MELD score [C statistic = 0.830, 95% confidence interval (CI) = 0.73-0.93] had better prognostic accuracy for predicting outcomes than the Clichy criteria (C statistic = 0.719, 95% CI = 0.58-0.85) or the King's College criteria (C statistic = 0.631, 95% CI = 0.49-0.77). In conclusion, hepatitis B and AIH were the most frequent causes of fulminant hepatic failure in our series, and no cases of ACM overdosing were identified. A MELD score ≥ 29 and an encephalopathy grade ≥ 3 at admission were associated with death. The MELD score at admission showed the highest prognostic accuracy., (© 2014 American Association for the Study of Liver Diseases.)

Background: Bile duct injury (BDI) is a severe complication that may arise during the surgical treatment of benign disease and a few patients will develop end-stage liver disease (ESLD) requiring a liver transplant (LT)., Objective: Analyse the experience using LT as a definitive treatment of BDI in Argentina., Patients and Methods: A national survey regarding the experience of LT for BDI., Results: Sixteen out 18 centres reported a total of 19 patients. The percentage of LT for BDI from the total number of LT per period was: 1990-94 = 3.1%, 1995-99 = 1.6%, 2000-04 = 0.7% and 2005-09 = 0.2% (P < 0.001). The mean age was 45.7 ± 10.3 years (range 26-62) and 10 patients were female. The BDI occurred during cholecystectomy in 16 and 7 had vascular injuries. One patient presented with acute liver failure and the others with chronic ESLD. The median time between BDI and LT was 71 months (range 0.2-157). The mean follow-up was 8.3 years (10 months to 16.4 years). Survival at 1, 3, 5 and 10 years was 73%, 68%, 68% and 45%, respectively., Conclusions: The use of LT for the treatment of BDI declined over the review period. LT plays a role in selected cases in patients with acute liver failure and ESLD., (© 2011 International Hepato-Pancreato-Biliary Association.)

Objectives: To study the aetiology, outcome and prognostic indicators in children with acute liver failure (ALF)., Study Design: Retrospective chart review of 210 patients (107 males/103 females; median age: 5.33 years, range: 1-17.4). Patients were followed until discharge (group 1), death (group 2) or liver transplantation (LT; group 3). Data from group 1 were compared to data from the other two groups and King's College criteria were also assessed., Results: Final diagnoses were: 128 (61%) hepatitis A, 68 (32%) indeterminate and 14 (7%) others. The characteristics of patients who survived (n = 59), died (n = 61) and underwent LT (n = 90) were analysed. In multivariate analysis, prothrombin time and encephalopathy III/IV were the most significant parameters suggesting a high likelihood of death. When King's College criteria were applied on admission in patients with and without transplantation, the positive predictive values were 96% and 95%, and the negative predictive values were 82% and 82%, respectively., Conclusions: Hepatitis A is the main cause of ALF in children in Argentina. Advanced encephalopathy and prolonged prothrombin time were significantly associated with death or need for LT. King's College criteria for predicting the outcome of ALF are applicable in children, including those with ALF due to hepatitis A infection.

This article describes the preliminary experimental steps and clinical implementation of a purely pediatric liver transplantation (LT) program in a large public children's hospital in Buenos Aires, Argentina, a city with well over 10 million inhabitants and a referral population of over 30 million. Between 1993 and 1997, 84 LTs were performed in 81 patients, of which one-fourth weighed below 10 kg. The main indications were biliary atresia (n = 25, 30%) and fulminant liver failure (n = 23, 27%), followed by autoimmune cirrhosis (n = 14, 16%) and other liver diseases. Shortage of organs due to local conditions led to the use of liver-reduction techniques in 48 cases (57%), split liver in 2, and living-related donor (LRD) in 2. Retransplantation was necessary in 3 instances. Seventy-eight percent of the recipients survived for more than 1 year and 71% were alive after 4 years. The authors comment on the need for adaptation to local conditioning factors when developing a pediatric LT program in any country in which demographics and economic, medical, and sociological environments have a decisive influence on organ procurement, the actual performance of the operation, and the lifelong postoperative medication. In Buenos Aires, where the hospital setting is well-developed, the indications are in part determined by the high incidence of hepatitis A. Organ shortages in our area led to liberal use of liver reduction, split-liver, and LRD techniques. The overall results of the first years of such a program were largely satisfactory.