title: AAEM case report #21: hemifacial spasm: preoperative diagnosis and intraoperative management.
abstract: A 75-year-old man developed progressive involuntary hemifacial spasm. Electrophysiologic evidence of abnormal cross-transmission between neurons of the facial nerve was demonstrated. Electrodiagnostic studies were used to confirm the diagnosis preoperatively and determine the adequacy of vascular decompression of the facial nerve intraoperatively.
authors.affiliation: Department of Neurology, Mayo Clinic, Rochester, Minnesota 55905.
authors.forename: C M
authors.initials: CM
authors.lastname: Harper
mesh_terms: D000368:Aged; D004576:Electromyography; D005152:Facial Muscles / Q000503:physiopathology*; D005154:Facial Nerve / Q000503:physiopathology*; D006801:Humans; D008297:Male; D016343:Monitoring, Intraoperative; D009119:Muscle Contraction / Q000502:physiology; D009431:Neural Conduction / Q000502:physiology; D013035:Spasm / Q000175:diagnosis* / Q000601:surgery*