Living Related Liver Transplantation. Why This Option Has Been Discarded in a Pediatric Liver Transplant Program in Chile

Fulminant acute hepatitis in pediatrics in Latin America and the Caribbean

SUMMARY OBJECTIVE: The objective of this review was to investigate the epidemiology of Fulminant Acute Hepatitis in Latin America and the Caribbean and identify possible measures aimed at a better understanding and improvement of patient support. METHODS: We used 3 different researchers to investigate the topic of Fulminant Acute Hepatitis in pediatrics in papers published by Latin American and Caribbean authors in the PubMed and SciELO databases from 2000 to 2016. RESULTS: We found 2,879 articles in the databases searched. After selecting and excluding articles according to the study protocol, 68 remaining studies were obtained for analysis. A total of 1,265 cases of acute fulminant hepatitis were detected, with a predominance of females (42.9%), followed by males (39.4%), with no description of sex in 17.7% of the cases. The main cause was viral hepatitis, representing 45.1% of the cases. The hepatitis A virus was responsible for 34.7% of the total cases and 76.9% of the infectious causes. Of the total number of patients, 26.9% were described as idiopathic, and 11.5% had no cause. CONCLUSION: The preventable causes of Fulminant Acute Hepatitis include hepatitis viruses - primarily the hepatitis A virus - and poisoning. Active vaccination, basic sanitation, and public awareness can reduce the number of patients and, consequently, the costs of liver transplantation due to these causes.

Pediatric liver transplantation experience and outcome in Chile

INTRODUCTION

In 1994 our group began its experience with pediatric liver transplantation. The experience gained during this period is the largest in the country, positioning the Hospital Luis Calvo Mackenna and Clinica Las Condes as major referral centers in the public and private sectors. The aim of this study was to report our experience of our pediatric liver transplantation program during this period.

METHODS

The liver transplantation database of Hospital Luis Calvo Mackenna and Clinica Las Condes between January 1994 and July 2011 was reviewed recording age, gender, indications for transplantation, surgical technique, complications, and survival. Survival rates were calculated using Kaplan-Meier analysis.

RESULTS

During the period described 230 transplantations were performed in 189 pediatric patients. Fifty-five percent were male patients. The average age was 5 years. The main causes of transplantation were biliary atresia (50%), fulminant hepatic failure (25%), and other cholestatic diseases by 10%. Vascular and biliary complications were the leading cause of graft loss and retransplantation. The overall rate of retransplantation at 5 years was 20%. The technique of living donor was used in 28% of the cases. The 1-year patient actuarial survival rate was 80%, 73% at 5 years, and 68% at 10 years. In the last 3 years the survival rate at 1 year exceeds 90%.

DISCUSSION

Our program includes more than 90% of the national liver experience. The incorporation of living donor is a milestone that has enabled us to save many patients who previously died while waiting for an organ. Its use in cases of full acute liver failure has allowed us to dramatically reduce mortality on the waiting list. Our results in the last 3 years reflect the experience that results in a significant decrease in mortality, comparing favorably to other series published in the international literature.

Chilean experience in liver transplantation for acute liver failure in children

BACKGROUND

Acute liver failure (ALF) in children is a life-threatening condition, associated with high mortality, and in almost one third of the cases, with no other therapeutic option than orthotopic liver transplant (OLT). The aim of this study was to present our experience with OLT for ALF in pediatric patients in Chile. Patients fulfilling the criteria for ALF who were transplanted in our centers were prospectively included in an excel Microsoft database. We analyzed demographics, etiology, surgical techniques, complications, and long-term results.

PATIENTS AND METHODS

Between 1994 and 2009, we transplanted 52 pediatric patients with ALF. The most frequent known etiology was acute hepatitis A in 9 cases (18%), but in 26 cases (50%) it was impossible to determine the etiology. Thirty- one patients were males (63%). The overall mean age was 7.5 years and the mean weight, 28.1 kg. Thirty-five (67%) received a cadaveric graft. Among them in 18 cases (34%) the liver had to be reduced but 17 (33%) received whole livers. There were 17 (33%) recipients of living-related livers. Twenty-two patients needed reoperation, including 13 due to surgical complications (59%) and 9 (41%) as planned interventions. Ten patients were retransplanted.

RESULTS

Actuarial survival of patients at 1 year was 80% and at 5 and 10 years, 72%. Graft survival at 1 year was 79%, at 5 years 69%, and at 10 years 50%.

CONCLUSION

We have reported a series of pediatric liver transplant patients due to ALF whose results were comparable to other reported series. Living donor transplantation for ALF should be considered and offers a low morbidity rate without mortality.