The estimation of excessive daytime sleepiness in post-stroke patients - the polysomnographic study

Publication date: Available online 25 May 2019Source: Respiratory Physiology & NeurobiologyAuthor(s): Helena Martynowicz, Anna Jodkowska, Robert Skomro, Paweł Gać, Agnieszka Brylka, Maciej Bladowski, Anna Wojakowska, Grzegorz Mazur, Rafał PorębaAbstractExcessive daytime sleepiness (EDS) has been reported in stroke patients. EDS in acute stroke was studied repeatedly, but there is a modest amount of data in post-stroke patients. The aim of this study was to assess the frequency of EDS and characterize sleep architecture in patients>3 months after stroke and identify factors which may affect EDS.66 patients were enrolled, of which 33 had experienced stroke. All underwent a standardized overnight, diagnostic single night polysomnography, including electrocephalogram (EEG) leads, electrooculograms (EOG), chin electromyogram (EMG), and electrocardiogram (ECG). Epworth Sleepiness Scale (ESS) was used to measure subjects’ level of daytime sleepiness.We observed similar total ESS score, total sleep time (TST), sleep efficiency, as well as respiratory disturbance index /apnea-hypopnea index (RDI/AHI), oxygen desaturation index (ODI) and mean heart rate in both groups. We observed positive linear correlation between EDS and mean heart rate in the stroke group (r = 0.46, p < 0.05) as well as between EDS and REM duration (r = 0.23, p < 0.05). In the non-stroke group EDS didn’t correlate with the heart rate or with the REM duration. In the non-stroke group ...
Source: Respiratory Physiology and Neurobiology - Category: Respiratory Medicine Source Type: research