RESUMEN
Introduction: Biliary Atresia is a fibroobliterativedisorder of the intra andextrahepatic bile ducts in infancy, which isgoing progressively cholestatic liver disease.The failed Kasaiportoenterostomy requiresliver transplantation. The goal of this studyis to show the outcome of Kasai operation,recent improvement and correlation the datato overseas.Methods and Materials: This study wasconducted in the department of generalsurgery of National Center for Maternal andChild Health of Mongolia between 2010 and2016 on a total of 66 infancies with biliaryatresia.Results: Patient diagnosed with biliaryatresia, which performed Kasai operationwithin first 2 months the outcome is verygood early and late post-operation period.There were 3 patients with 10 year survival, 4patients with 5-10 year and 28 patients with5 year survival after Kasai operation. The mostcomport age for liver transplantation is 1 yearlater after Kasai operation in Mongolia. Livertransplantation programme is necessary forMongolian pediatric surgery, and we thoughtour team was assembled.Conclusion: The children with biliary atresiaperform the Kasai operation within 2 monthsthe outcome is very good. Children with biliaryatresia often experience long wait times fortransplant unless exception points are grantedto reflect severity of disease.In Mongolia livertransplantation done in 2 child.