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Repeat microvascular decompression for hemifacial spasm.

J A Engh1, M Horowitz, L Burkhart

  • 1University of Pittsburgh Medical Center, PA 15213, USA.

Journal of Neurology, Neurosurgery, and Psychiatry
|October 18, 2005
PubMed
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Repeat microvascular decompression (MVD) for hemifacial spasm (HFS) is effective, with 82.4% of patients experiencing favorable outcomes. Younger patients and those undergoing early re-operation showed significantly better results for HFS treatment.

Area of Science:

  • Neurosurgery
  • Neurology

Background:

  • Hemifacial spasm (HFS) is a neurological disorder characterized by involuntary contractions of facial muscles.
  • Microvascular decompression (MVD) is a primary surgical treatment for HFS, but some patients may require repeat procedures due to initial failure or recurrence.

Purpose of the Study:

  • To evaluate the efficacy and outcomes of repeat microvascular decompression (MVD) for patients with hemifacial spasm (HFS) who did not achieve satisfactory results from their first surgery.

Main Methods:

  • The study involved 41 repeat MVD procedures in 36 patients over three years.
  • Patients were categorized based on the timing of re-operation: early (within the same procedure or shortly after) or late (long after the initial MVD).
  • Eight patients had undergone at least two prior operations.

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Main Results:

  • A favorable outcome (complete or near-total resolution) was achieved in 94.1% of patients.
  • Overall, 82.4% of patients reported a favorable outcome at a mean follow-up of 18 months.
  • Younger patients (≤50 years) had higher cure rates (91.7%) compared to older patients (59.1%). Early re-operations yielded better results than late re-operations (p = 0.03).

Conclusions:

  • Repeat MVD is an effective treatment for HFS in patients with prior surgical failure, particularly when performed by experienced surgeons.
  • Younger age and early re-operation are associated with better outcomes in repeat MVD for HFS.
  • While late repeat MVD is a viable option, its success rate is lower compared to early re-operations.