Acute-on-chronic liver failure in children

Ali Islek1, Gokhan Tumgor2

  • 1Department of Pediatric Gastroenterology, Cukurova University School of Medicine, Adana 01330, Turkey.

World Journal of Hepatology
|November 17, 2021
PubMed

Insights

Acute-on-chronic liver failure (ACLF) lacks a universal pediatric definition. Early recognition of pediatric ACLF is crucial for timely intervention and improved outcomes, as it indicates a poor prognosis.

Area of Science:

  • Pediatric Hepatology
  • Critical Care Medicine

Background:

  • Acute-on-chronic liver failure (ACLF) is a severe clinical syndrome characterized by acute liver decompensation in patients with underlying chronic liver disease.
  • Pediatric ACLF presents unique challenges due to differences in acute events and chronic liver diseases compared to adults.
  • Geographical variations exist in the prevalence of underlying liver diseases and precipitating factors for ACLF in children.

Purpose of the Study:

  • To highlight the current lack of a universal definition for pediatric acute-on-chronic liver failure (ACLF).
  • To emphasize the distinct characteristics of ACLF in children compared to adults.
  • To underscore the importance of early recognition and management of pediatric ACLF.

Main Methods:

  • Review of existing literature on acute-on-chronic liver failure (ACLF) definitions and pediatric cases.
  • Comparison of etiological factors and clinical presentations of ACLF in pediatric and adult populations.
  • Evaluation of current prognostic scoring systems and their applicability to pediatric ACLF.

Main Results:

  • There is no universally accepted definition for pediatric acute-on-chronic liver failure (ACLF).
  • Common causes in children include autoimmune hepatitis and Wilson's disease flares, differing from adult populations.
  • Modified adult scoring systems (APASL ACLF, CLIF-SOFA) can be tentatively used for prognosis in children.

Conclusions:

  • Early identification of pediatric ACLF is critical to prevent extrahepatic organ failure.
  • Liver transplantation remains the primary definitive treatment for pediatric ACLF.
  • Development of specific, validated prognostic scoring systems for pediatric ACLF is urgently needed.

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