Hypersomnia and Reduction in Essential Tremor after Bilateral Subthalamic Ischemic Stroke (P4.285)

Conclusions:Prevalence of hypersomnia among stroke patients ranges from 1.1 to 27[percnt].A reduction in the activity of arousal systems underlies most forms of post stroke hypersomnia.Multiple changes like reduction in the amount of NREM sleep, sleep time, sleep spindles, REM sleep ( in occipital strokes ) were also described depending on the location of the stroke. Thalamic and brainstem strokes can present with pathological EEG patterns like alpha coma.Along with bilateral thalamic strokes, strokes in thalamo-mesencephalic regions, upper pons and medial pontomedullary lesions can cause marked hypersomnia. Cortical and subcortical strokes,on the other hand tend to not cause significant sleepiness. Insomnia, parasomnias, periodic leg movements in sleep and sleep disordered breathing can also happen in the setting of stroke.Disclosure: Dr. Pesala has nothing to disclose. Dr. Nalleballe has nothing to disclose. Dr. Bollu has nothing to disclose.
Source: Neurology - Category: Neurology Authors: Tags: Parasomnias and Hypersomnias Source Type: research