[The case of prominent EEG sleeping activity in thalamic stroke patients].
Presented here is a clinical case of thalamic stroke which affected mainly non-specific thalamic regions. In acute disease stage, the patient exhibited a prominent psychopathological features, slight hemihypoaesthesia and sleep disturbances. Polysomnography confirmed the disturbances of sleep structure: the increase of sleep onset latency, number of awakenings, waking time and stage 1 duration, decrease of both deep sleep stages (3 and 4) and REM sleep. Visual analysis revealed EEG spindle asymmetry in stage 2 of the first sleep cycle, with sleep spindles predominating in the undamaged hemisphere. Spectral EEG analysis confirmed the presence of power asymmetry not only in the sigma-band but also in the other band ranges. This clinical case allows discussing the role of the thalamus in generation of quiet sleep EEG phenomena.
Poluéktov
M G
MG
Petrov
K M
KM
Azimova
Iu E
IuE
Veĭn
A M
AM
D000368:Aged; D004569:Electroencephalography; D005260:Female; D006801:Humans; D017286:Polysomnography; D012894:Sleep Stages / Q000502:physiology; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D020521:Stroke / Q000150:complications / Q000503:physiopathology*; D013788:Thalamus / Q000098:blood supply / Q000503:physiopathology*