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[Acute reversible liver necrosis after valproate therapy (immunologic hypersensitivity)]
Padiatrie Und Padologie
|January 1, 1993
Summary
Severe liver injury in a child treated with valproate showed remarkable recovery. Immunologic idiosyncrasy to valproate persisted, necessitating alternative epilepsy treatment.
Area of Science:
- Hepatology
- Immunology
- Pediatric Neurology
Background:
- Valproate is a widely used antiepileptic drug.
- Idiosyncratic drug reactions can cause severe adverse effects.
- Acute liver injury is a rare but serious complication of valproate therapy.
Observation:
- A 9-year-old boy developed severe acute liver injury following valproate administration.
- Initial liver biopsy showed over 50% hepatocyte necrosis.
- A follow-up biopsy revealed near-complete reversibility of the liver injury.
Findings:
- The liver injury was idiosyncratic and almost fully reversible.
- Evidence of immunologic idiosyncrasy to valproate persisted for five years.
- In vitro lymphocyte blastic transformation confirmed the immune response.
Implications:
- This case highlights the potential for severe, yet reversible, idiosyncratic liver injury from valproate.
- Long-term immunologic monitoring may be relevant in patients with idiosyncratic drug reactions.
- Alternative antiepileptic drugs, such as ethosuximide, can effectively manage epilepsy in such cases.