Microvascular decompression for hemifacial spasm associated with large fenestration of the vertebral artery: illustrative case.

Key Points

• The research focuses on treating hemifacial spasm linked to a large fenestration in the vertebral artery.
• Illustrative case report
• Surgical intervention via microvascular decompression
• Preoperative imaging to assess vascular architecture
• Successful alleviation of hemifacial spasm symptoms post-surgery
• Improved understanding of vertebral artery anatomy
• Consideration of limiting factors from perforating branches during surgery