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Fully endoscopic microvascular decompression for hemifacial spasm.

Tracy M Flanders1, Rachel Blue1, Sanford Roberts1

  • 11Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania; and.

Journal of Neurosurgery
|December 1, 2018
PubMed
Summary
This summary is machine-generated.

Fully endoscopic microvascular decompression (E-MVD) offers a safe and effective treatment for hemifacial spasm (HFS), with most patients experiencing significant symptom relief and minimal complications. This technique provides a clear view of neurovascular conflicts.

Keywords:
AICA = anterior inferior cerebellar arteryBAEP = brainstem auditory evoked potentialCPA = cerebellopontine angleE-MVD = endoscopic MVDEA-MVD = endoscope-assisted MVDHFS = hemifacial spasmIONM = intraoperative neuromonitoringLSR = lateral spread responseMVD = microvascular decompressionPICA = posterior inferior cerebellar arteryVA = vertebral arteryendoscopicfunctional neurosurgeryhemifacial spasmlateral spread responsemicrovascular decompression

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Area of Science:

  • Neurosurgery
  • Minimally Invasive Techniques

Background:

  • Hemifacial spasm (HFS) involves involuntary facial muscle contractions.
  • Fully endoscopic microvascular decompression (E-MVD) is an emerging technique for HFS treatment.

Purpose of the Study:

  • To evaluate the safety and efficacy of fully E-MVD for treating HFS.
  • To assess the adoption and outcomes of this endoscopic approach.

Main Methods:

  • Retrospective study of 27 patients (28 E-MVD cases) with HFS.
  • Reviewed intraoperative monitoring (brainstem auditory evoked potentials, lateral spread response).
  • Assessed clinical outcomes and complications post-procedure.

Main Results:

  • 85.7% of patients (24/28) experienced complete or partial HFS relief.
  • 60.7% (17/28) achieved complete symptom resolution.
  • 96% (26/27) had no permanent postoperative complications.

Conclusions:

  • Fully E-MVD is a safe and feasible surgical option for HFS.
  • The endoscope provides a comprehensive view of neurovascular compression.
  • Monitoring lateral spread response is crucial for successful neurosurgical management.