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Summary of eleven cases of hemifacial spasm caused by vertebrobasilar dolichoectasia
*one patient who had bilateral HFS and underwent MVD twice. ( ) : over offender vessel, not direct contact. TOF-MRI : time of flight magnetic resonance image, VA : vertebral artery, PICA : posterior inferior cerebellar artery, AICA : anterior inferior cerebellar artery, BA : basilar artery, FP : facial palsy. P-FP : permanent facial palsy, HI : hearing impairment
