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Updated: May 29, 2025

Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
Published on: November 27, 2019
Acute Liver Failure: Is Acetaminophen the Only Culprit?
Scott D McLaughlin1, Jason Z Amaral2, Joshua Thomas3
1Department of Internal Medicine, Advocate Lutheran General Hospital, Park Ridge, USA.
Epstein-Barr virus hepatitis complicated a teen's acetaminophen overdose, making it resistant to standard treatment. Fomepizole addition improved outcomes, suggesting its potential role in managing severe pediatric drug-induced liver injury.
Area of Science:
- Hepatology
- Virology
- Pediatric Toxicology
Background:
- Epstein-Barr virus (EBV) can cause hepatitis, potentially altering liver metabolism and increasing susceptibility to drug toxicity.
- Acetaminophen overdose is a leading cause of acute liver failure in children.
Observation:
- A 16-year-old female with acute EBV infection developed severe acetaminophen toxicity despite appropriate initial management.
- Her condition was refractory to N-acetylcysteine treatment.
Findings:
- Fomepizole was added to N-acetylcysteine, leading to clinical improvement and resolution of liver injury.
- Fomepizole may have reduced toxic metabolite (NAPQI) formation by inhibiting CYP2E1 and suppressed inflammation.
Implications:
- This case highlights the challenges in managing pediatric acute liver failure with coexisting viral hepatitis.
- Fomepizole shows promise as an adjunctive therapy for N-acetylcysteine-refractory acetaminophen toxicity in pediatric patients with viral hepatitis.
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