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Updated: Nov 20, 2025
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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
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Prospective, Multicenter Clinical Study of Microvascular Decompression for Hemifacial Spasm
Yoshifumi Mizobuchi1, Shinji Nagahiro1, Akinori Kondo2
1Department of Neurosurgery, Tokushima University Faculty of Medicine, Tokushima, Japan.
Neurosurgery
|January 20, 2021
Summary
Microvascular decompression (MVD) for hemifacial spasm (HFS) shows high long-term success rates and low complication rates in specialized centers. This effective and safe treatment is suitable for all patients, including the elderly.
Area of Science:
- Neurosurgery
- Neurology
Background:
- Microvascular decompression (MVD) is the primary treatment for hemifacial spasm (HFS).
- Limited data exists on MVD outcomes from prospective, multicenter studies, especially from non-specialized centers.
Purpose of the Study:
- To assess short- and long-term outcomes and complications of MVD for HFS.
- To evaluate MVD efficacy in specialized Japanese neurosurgical institutions.
Main Methods:
- A prospective, multicenter cohort study involving 486 patients undergoing MVD for HFS.
- Data collected on symptom relief and complications at 7 days, 1 year, and 3 years post-surgery.
- Intraoperative neuromonitoring utilized in 96.3% of cases.
Main Results:
- Short-term complete cure rate was 70.6% with a 15% complication rate.
- Long-term follow-up (95.3%) showed an 87.1% complete cure rate and a 3.0% complication rate.
- No mortality was reported.
Conclusions:
- MVD demonstrates a high long-term efficacy for HFS when performed with expert guidance and neuromonitoring.
- Complications are infrequent and typically transient, confirming MVD as a safe and effective treatment for HFS, including in elderly individuals.
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