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Related Experiment Videos

Vasculitic neuropathy. A clinical and pathological study.

S H Hawke1, L Davies, R Pamphlett

  • 1Department of Neurology, Royal Prince Alfred Hospital, Australia.

Brain : a Journal of Neurology
|October 1, 1991
PubMed
Summary

Necrotizing vasculitis frequently causes peripheral neuropathy, often presenting as mononeuritis multiplex. While neuropathy symptoms may improve with treatment, the underlying systemic vasculitis carries a poor long-term prognosis.

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Area of Science:

  • Neurology
  • Rheumatology
  • Pathology

Background:

  • Peripheral neuropathy can be a manifestation of systemic vasculitis.
  • Necrotizing vasculitis involves inflammation and damage to blood vessels, potentially affecting nerves.

Purpose of the Study:

  • To evaluate the clinical, electrophysiological, and pathological features of peripheral neuropathy in patients with necrotizing vasculitis.
  • To assess the prognosis and treatment outcomes for these patients.

Main Methods:

  • Retrospective analysis of 34 patients with peripheral neuropathy due to necrotizing vasculitis.
  • Clinical assessment, electrophysiological nerve conduction studies, and sural nerve biopsies.
  • Immunofluorescent staining and long-term follow-up.

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Main Results:

  • Mononeuritis multiplex was the most common presentation, often accompanied by pain.
  • Nerve conduction studies showed abnormalities in all patients, including conduction block in some.
  • Sural nerve biopsies revealed necrotizing vasculitis and axonal degeneration; immunofluorescence was positive for immune deposits.
  • Treatment with immunosuppressants and plasmapheresis led to neuropathy improvement but not improved systemic disease survival.

Conclusions:

  • Peripheral neuropathy in necrotizing vasculitis has distinct clinical and pathological features.
  • While neuropathy may improve, the systemic vasculitis has a poor prognosis with low long-term survival rates.