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Related Experiment Videos

Paracetamol induced hepatotoxicity.

S B K Mahadevan1, P J McKiernan, P Davies

  • 1The Liver Unit, Birmingham Children's Hospital, Birmingham, UK. bkmsubra@yahoo.co.uk

Archives of Disease in Childhood
|March 21, 2006
PubMed
Summary
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Delayed treatment and severe hepatic encephalopathy are key indicators of poor outcomes in children with paracetamol-induced liver injury. Prompt medical attention and specialized care are crucial for managing overdose toxicity and determining the need for liver transplantation.

Area of Science:

  • Pediatric Hepatology
  • Clinical Toxicology
  • Pharmacovigilance

Background:

  • Paracetamol (acetaminophen) overdose is a common cause of acute liver injury in children.
  • Significant hepatotoxicity can lead to fulminant liver failure and necessitate liver transplantation.
  • Identifying risk factors is crucial for timely intervention and improved patient outcomes.

Purpose of the Study:

  • To determine clinical and biochemical predictors of outcome in pediatric paracetamol-induced hepatotoxicity.
  • To differentiate risk factors for recovery versus progressive liver dysfunction requiring liver transplantation.

Main Methods:

  • Retrospective analysis of 51 children with paracetamol overdose admitted between 1992 and 2002.
  • Patients were categorized into two groups: conservative treatment recovery (Group I) and progressive liver dysfunction/transplant listing (Group II).

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  • Clinical data, biochemical markers, and treatment timelines were reviewed.

    • Main Results:

    • Late presentation (>24 hours) was associated with poorer outcomes (Group II).
    • Poor prognostic indicators included prothrombin time >100 seconds, hypoglycemia, elevated creatinine (>200 µmol/L), acidosis (pH <7.3), and Grade III hepatic encephalopathy.
    • While transaminase levels were high in both groups, they did not correlate with transplant need or mortality.

    Conclusions:

    • Delayed presentation and treatment, along with severe hepatic encephalopathy (Grade III), are significant risk factors for poor prognosis in pediatric paracetamol overdose.
    • These factors indicate a potential need for orthotopic liver transplantation (OLT).
    • Early identification of high-risk children and prompt referral to specialized centers are essential for effective management and consideration of OLT.