title: Control of post-stroke movement disorders using chronic motor cortex stimulation.
abstract: The effects of motor cortex (MC) stimulation on post-stroke movement disorders were analyzed in 50 patients. These individuals either underwent MC stimulation primarily for the purpose of controlling their post-stroke involuntary movements (n = 8) or underwent MC stimulation for the purpose of controlling their post-stroke central pain (n = 42). In the latter patients, the effects of MC stimulation on co-existent involuntary or voluntary movement disorders were analyzed retrospectively. Good control of involuntary movements was observed in 2 of 3 patients with hemichoreo-athetosis, 2 of 2 patients with distal resting or action tremor, and 1 of 3 patients with proximal postural tremor. Subjective improvements in motor performance were reported by 8 patients who had mild motor weakness, and the effects appeared to be attributable to attenuation of rigidity. We consider that these findings justify further clinical studies on MC stimulation for the control of post-stroke movement disorders.
authors.affiliation: Department of Neurological Surgery, Nihon University School of Medicine, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Katayama
authors.forename: H
authors.initials: H
authors.lastname: Oshima
authors.forename: C
authors.initials: C
authors.lastname: Fukaya
authors.forename: T
authors.initials: T
authors.lastname: Kawamata
authors.forename: T
authors.initials: T
authors.lastname: Yamamaoto
mesh_terms: D004599:Electric Stimulation Therapy; D006801:Humans; D009044:Motor Cortex / Q000503:physiopathology*; D009068:Movement; D009069:Movement Disorders / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy*; D010146:Pain / Q000209:etiology; D059408:Pain Management; D010166:Palliative Care; D012189:Retrospective Studies; D020521:Stroke / Q000150:complications*; D016896:Treatment Outcome; D014836:Volition