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NAFLD and Liver Transplantation in Children-Working Group Report From the ILTS Single Topic Conference on NAFLD
Mara Cananzi1, Pietro Vajro2, Mohamed Rela3
1Unit of Paediatric Gastroenterology, Digestive Endoscopy, Hepatology and Care of the Child with Liver Transplantation, University Hospital of Padova, Padova, Italy.
Insights
Nonalcoholic fatty liver disease (NAFLD) is common in children, but rarely requires liver transplantation. Further research is needed on its natural history and transplantation indications in pediatric patients.
Area of Science:
- Pediatric Hepatology
- Liver Transplantation
- Metabolic Disorders
Background:
- Nonalcoholic fatty liver disease (NAFLD) is a prevalent cause of pediatric chronic liver disease.
- Exclusion of secondary causes, such as inherited metabolic defects, is crucial in pediatric NAFLD cases.
- Liver transplantation is an infrequent treatment for NAFLD in children, contrasting with adult populations.
Purpose of the Study:
- To review the current evidence and knowledge regarding pediatric NAFLD.
- To focus on the role and indications of liver transplantation in children with NAFLD.
- To develop best practice recommendations for managing pediatric NAFLD.
Main Methods:
- A pediatric working group of hepatologists and a liver transplant surgeon was formed.
- A systematic review of English literature on pediatric NAFLD (birth to 18 years) from 2000-2018 was conducted.
- Evidence was evaluated and discussed by the group to formulate recommendations.
Main Results:
- High/moderate strength recommendations were possible for NAFLD risk factors and medical treatment due to available evidence.
- The quality of evidence regarding the natural history and indications for liver transplantation in pediatric NAFLD was poor.
- No definitive recommendations could be made concerning the natural history or transplantation for pediatric NAFLD.
Conclusions:
- Nonalcoholic fatty liver disease is a rare indication for liver transplantation in children.
- There is a significant lack of high-quality evidence on the natural history and transplantation outcomes for pediatric NAFLD.
- Further research is essential to establish clear guidelines for liver transplantation in pediatric NAFLD cases.
Background:
Nonalcoholic fatty liver disease (NAFLD) has now become a common cause of chronic liver disease in children; however, unlike adults liver transplantation is rarely required as treatment. It is important that in children presenting with NAFLD, secondary causes of fatty liver particularly inherited metabolic defects should be excluded.
Methods:
A pediatric working group comprised of 3 hepatologists and a liver transplant surgeon was tasked with a set of questions to address the current state of evidence and knowledge about NAFLD in children with particular focus on liver transplantation. A systematic review of the English literature regarding pediatric NAFLD (from birth to 18 years of age) published in the last 2 decades (2000-2018) was carried out. The evidence was evaluated by the subgroup members and further discussed with the wider workshop faculty leading to the recommendations for best practice.
Results:
Given the paucity of literature on the subject good quality of evidence was only available on risk factors for NAFLD and medical treatment where the group could make recommendation with high/moderate strength. The evidence on natural history and indications for liver transplantation was poor hence group could not make any recommendations.
Conclusions:
Based on the existing literature and subgroups, collective experience NAFLD unlike in adults is a very rare indication for liver transplantation in children. No definitive recommendations could be made about the natural history, indications, and outcome of liver transplantation for NAFLD in children.
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