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[Acute liver necrosis caused by valproate].

W Zäh, M Rengeling, G Rühl

    Deutsche Medizinische Wochenschrift (1946)
    |June 14, 1985
    PubMed
    Summary

    Valproic acid treatment led to fatal acute liver failure and lactacidosis in a patient with Friedreich's ataxia and epilepsy. Monitoring liver function and valproic acid levels is crucial to prevent severe adverse events.

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    Area of Science:

    • Neurology
    • Hepatology
    • Pharmacology

    Background:

    • Friedreich's ataxia is a rare inherited disease causing progressive nervous system damage.
    • Generalized epilepsy is a neurological disorder characterized by recurrent seizures.
    • Valproic acid is a commonly prescribed antiepileptic drug also used for other conditions.

    Observation:

    • A 19-year-old female with Friedreich's ataxia and epilepsy developed acute hepatic failure and massive lactacidosis after valproic acid treatment.
    • Clinical presentation included hyperventilation, declining consciousness, shock, and treatment-resistant hepatic coma.
    • Autopsy revealed extensive liver necrosis and fatty degeneration, characteristic of valproic acid toxicity.

    Findings:

    • The patient's death was attributed to valproic acid-induced acute liver failure and lactacidosis.
    • Histopathological findings in the liver were consistent with drug-induced hepatotoxicity.
    • The case highlights a rare but severe adverse reaction to valproic acid.

    Implications:

    • Close monitoring of liver function is essential in patients treated with valproic acid, especially those with pre-existing conditions.
    • Early detection of prodromal symptoms like anorexia, weakness, or apathy warrants prompt medical evaluation.
    • Maintaining serum valproic acid levels in the lower therapeutic range may mitigate the risk of hepatotoxicity.

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