Abstract
Endoscopic visualization during microvascular decompression for hemifacial spasm enables better identification of compression areas along the facial nerve, which is especially important in cases with complex compression and enlarged vessels obscuring the compression site. A 40-year-old man presented with a 10-year history of left hemifacial spasm. Magnetic resonance imaging showed a deep compression site with multiple vessels. Within the narrow space, the compression area was clearly visualized using an angled endoscope. Arterial transposition was performed using a polytetrafluoroethylene (Teflon) sling, which was fixed to the nearby dura using an aneurysm clip. Decompression was visually confirmed using the angled endoscope. The patient was free of spasms directly after surgery with no further complications and no recurrence of spasm during 6-month follow-up (Video 1).
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