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Updated: Mar 30, 2026
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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
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Management of Bilateral Hemifacial Spasm with Microvascular Decompression
Ning-Ning Dou1, Jun Zhong1, Ming-Xing Liu1
1Department of Neurosurgery, XinHua Hospital (The Cranial Nerve Disease Center of Shanghai), Shanghai JiaoTong University School of Medicine, Shanghai, China.
World Neurosurgery
|November 10, 2015
Summary
Microvascular decompression (MVD) effectively treats rare bilateral hemifacial spasm (HFS) by addressing vascular compression. This study shows MVD can resolve symptoms, even bilaterally, with no observed complications.
Area of Science:
- Neurosurgery
- Neurology
Background:
- Bilateral hemifacial spasm (HFS) is exceptionally rare, with limited documented cases.
- Microvascular decompression (MVD) is a standard treatment for HFS, but its application in bilateral cases is less explored.
Purpose of the Study:
- To evaluate the efficacy and outcomes of MVD in patients with bilateral HFS.
- To discuss the etiology and surgical strategies for bilateral HFS.
Main Methods:
- Retrospective analysis of 10 patients with bilateral HFS who underwent one or two MVD procedures.
- Follow-up duration ranged from 5 to 92 months, with analysis of clinical data, etiology, and treatment strategies.
Main Results:
- Complete resolution of spasms occurred on the operated side in all 10 patients.
- Three patients experienced resolution of symptoms on the contralateral side; one improved, and six did not initially improve.
- Five of the six initially unimproved patients achieved symptom relief after a second MVD procedure on the contralateral side. Neurovascular conflict was consistently identified, and no major complications like hearing loss or facial palsy were noted.
Conclusions:
- Vascular compression is identified as the cause of bilateral HFS in this cohort, with MVD providing symptom relief.
- A crowded cerebellopontine angle and susceptible neurovascular interfaces may contribute to bilateral HFS.
- MVD is recommended for bilateral HFS, with potential for single-procedure resolution in some cases.
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