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Related Experiment Videos

Perhexiline neuropathy: a clinicopathological study.

G Said

    Annals of Neurology
    |March 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Perhexiline maleate, used for angina, can cause polyneuropathy. This nerve damage, characterized by demyelination and axon loss, reversed after discontinuing the drug.

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    Area of Science:

    • Neurology
    • Toxicology
    • Pathology

    Background:

    • Perhexiline maleate is a medication for angina pectoris.
    • Drug-induced neuropathies are a known concern in clinical practice.

    Purpose of the Study:

    • To investigate the neuropathological effects of perhexiline maleate.
    • To characterize the histological features of perhexiline-induced polyneuropathy.

    Main Methods:

    • Light and electron microscopy were used for qualitative and quantitative analysis.
    • Teased fiber preparations were utilized to examine nerve fiber pathology.
    • Histopathological examination of nerve biopsies from affected patients.

    Main Results:

    • Five patients developed mild to severe polyneuropathy during perhexiline maleate treatment.

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  • Histological findings included segmental demyelination (16-90% of fibers) and Wallerian degeneration (3-20% of fibers).
  • Severe loss of myelinated axons was observed in all patients; clinical symptoms correlated with significant fiber loss and demyelination.

    • Conclusions:

    • Perhexiline maleate can induce a significant polyneuropathy characterized by demyelination and axon loss.
    • Nerve damage is reversible upon drug withdrawal, with recovery occurring within months.
    • The study highlights the importance of monitoring for neurological side effects during long-term perhexiline maleate therapy.