Microvascular decompression for hemifacial spasm after Bell's palsy: a retrospective clinical study

Area of Science:

• Neurology
• Neurosurgery

Background:

• Hemifacial spasm (HFS) can occur after Bell's palsy, presenting a complex clinical challenge.
• Identifying the underlying etiology is crucial for effective treatment of post-Bell's palsy HFS.

Purpose of the Study:

• To investigate the clinical characteristics of hemifacial spasm (HFS) following Bell's palsy.
• To evaluate the therapeutic efficacy and safety of microvascular decompression (MVD) for HFS after Bell's palsy.

Main Methods:

• Retrospective analysis of 18 patients with HFS post-Bell's palsy who underwent MVD.
• Assessment of clinical presentations, intraoperative findings, outcomes, and complications.

Main Results:

• Neurovascular compression (NVC) was the primary cause in all patients.
• Microvascular decompression (MVD) achieved an 83.3% immediate cure rate, with no recurrences during follow-up.
• Complications were minimal, including temporary facial paralysis and auditory impairment.

Conclusions:

• Neurovascular compression (NVC) is the predominant etiology for HFS after Bell's palsy.
• Microvascular decompression (MVD) is a safe and highly effective treatment for HFS following Bell's palsy.