title: Polysomnographic findings in dystonia musculorum deformans.
abstract: Twenty-five cases from the literature and four personal cases with dystonia musculorum deformans are described. The polysomnographic EEG findings of severely involved patients were characterized by over abundance of stage 2 sleep, with a characteristic pattern of spindle activity, increased latency to sleep, and reduced sleep efficiency. The similarities between these patients may underscore the importance of sleep spindles as a feature of the dystonia process and may be useful in the investigation of other basal ganglia disorders.
mesh_terms: D000328:Adult; D001921:Brain / Q000503:physiopathology; D004422:Dystonia Musculorum Deformans / Q000503:physiopathology*; D004569:Electroencephalography; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time; D012890:Sleep / Q000502:physiology*