Blink synkinesis during microvascular decompression of hemifacial spasm: a case report.
Objective: Microvascular decompression (MVD) of hemifacial spasm (HFS) may be guided by IONM. Described techniques include lateral spread response (LSR), blink reflex (BR), corticobulbar motor evoked potentials (CoMEPs), facial nerve F-wave and AEP. Although the BR is widely used, the intraoperative disappearance of blink synkinesis in lower facial nerve branches is scarcely described₁-₂. We present a case of MVD of HFS adding blink synkinesis assessment to the standard modalities to test hyper-excitability.
