title: Hemimasticatory spasm treated with microvascular decompression of the trigeminal nerve.
abstract: Hemimasticatory spasm is a very rare disorder of the trigeminal nerve characterized by paroxysmal involuntary contraction of the jaw-closing muscles. The mechanisms leading to hemimasticatory spasm are still unclear. Recently, injection of botulinum toxin has become the treatment of choice due to its excellent results. We report a case of a successful treatment of hemimasticatory spasm via microvascular decompression of the motor branch of the trigeminal nerve.
authors.affiliation: Department of Neurosurgery, Chonbuk National University Hospital and Medical School, 560-182, San 2-20, Keumamdong, Dukjin-Gu, Chonju, Republic of Korea.
authors.forename: Kyu-Hyon
authors.initials: KH
authors.lastname: Chon
authors.forename: Jong-Myong
authors.initials: JM
authors.lastname: Lee
authors.forename: Eun-Jeong
authors.initials: EJ
authors.lastname: Koh
authors.forename: Ha-Young
authors.initials: HY
authors.lastname: Choi
mesh_terms: D004576:Electromyography; D005500:Follow-Up Studies; D019569:Hemifacial Spasm / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D061145:Microvascular Decompression Surgery / Q000379:methods*; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000175:diagnosis / Q000601:surgery*; D013703:Temporal Muscle / Q000098:blood supply / Q000294:innervation / Q000601:surgery*; D014276:Trigeminal Nerve / Q000098:blood supply / Q000601:surgery*; D020433:Trigeminal Nerve Diseases / Q000175:diagnosis / Q000601:surgery*; D014313:Trismus / Q000175:diagnosis / Q000601:surgery*