IMMEDIATE SYMPTOMATIC RELIEF AFTER MICROVASCULAR DECOMPRESSION FOR HEMIFACIAL SPASM: A CASE SERIES

Hemifacial spasm is a movement disorder characterized by intermittent, involuntary clonic or tonic clonic contractions of muscles innervated by the ipsilateral facial nerve.it is commonly caused by vascular compression of the facial nerve at its Root Exit Zone (REZ) from the brainstem. Anterior inferior cerebellor artery, posterior inferior cerebellor artery, vertebral artery commonly compress the facial nerve. Usual symptoms are progressive involuntary facial twitching. MRI brain and MRA are advised to know about neurovascular compression.four case of hemifacial spasm are reported diagnosed on clinical grounds, and MRI brain and MRA are advised. our objective is to assess the surgical outcome of microvascular decompression (MVD) for Hemifacial spasm (HFS)