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Liver transplantation in children with biliary atresia and polysplenia syndrome
D Falchetti1, F B de Carvalho, P Clapuyt
1Department of Pediatric Surgery, University of Louvain Medical School, Brussels, Belgium.
Insights
Children with biliary atresia and polysplenia syndrome face unique challenges during liver transplantation. Despite increased technical difficulty, outcomes remain comparable to those without polysplenia syndrome.
Area of Science:
- Pediatric Surgery
- Hepatology
- Transplantation Immunology
Background:
- Biliary atresia is the leading cause for pediatric liver transplantation.
- Polysplenia syndrome occurs in about 10% of biliary atresia cases, potentially complicating liver transplantation.
- Associated anomalies include absent inferior vena cava, preduodenal portal vein, and midgut malrotation.
Purpose of the Study:
- To evaluate the impact of polysplenia syndrome on outcomes in pediatric liver transplantation for biliary atresia.
- To assess the technical challenges and survival rates in children with biliary atresia and polysplenia syndrome.
Main Methods:
- Retrospective review of 116 children with biliary atresia undergoing orthotopic liver transplantation (OLT) between March 1984 and December 1989.
- Analysis of pre-operative and intra-operative data, focusing on polysplenia syndrome features and vascular anomalies.
- Comparison of outcomes, including technical difficulty and survival rates, between patients with and without polysplenia syndrome.
Main Results:
- Polysplenia syndrome features were present in 12 of 116 children (10.3%).
- Vascular anomalies, including severe portal vein hypoplasia in 7 patients, increased surgical complexity.
- One peroperative death occurred in a patient with polysplenia syndrome; 1-month survival was 83% for this group versus 88% for controls.
Conclusions:
- Polysplenia syndrome presents significant technical challenges in pediatric liver transplantation for biliary atresia.
- Despite these challenges, successful OLT is achievable, with comparable short-term survival rates to patients without polysplenia syndrome.
- Careful surgical planning and execution are crucial for managing the complex anatomy associated with polysplenia syndrome.
Abstract:
Biliary atresia is the most common indication for orthotopic liver transplantation (OLT) in children. The polysplenia syndrome anomalies, which occur in approximately 10% of children with biliary atresia, may represent special difficulties at liver transplantation. We have reviewed our experience with this syndrome in 116 children with biliary atresia who underwent liver transplantation between March 1984 and December 1989. The main features of the polysplenia syndrome, which included absence of the inferior vena cava, preduodenal portal vein, midgut malrotation, aberrant hepatic artery, and situs inversus, were encountered in 12 of the 116 children (10.3%). Severe portal vein hypoplasia (3.5 mm or smaller) was also present in 7 of these children. Eight patients received a complete and four received a reduced liver graft. The vascular anomalies increased the technical difficulty of OLT but could be surmounted, although they did contribute to the peroperative death of one child. The 1-month survival rate was 83% for the 12 children with features of the polysplenia syndrome and 88% for the other 92 children with biliary atresia alone.