Investigating the Relationship Between Stroke and Obstructive Sleep Apnea
- 1 March 1996
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Stroke
- Vol. 27 (3), 401-407
- https://doi.org/10.1161/01.str.27.3.401
Abstract
Background and Purpose We aimed to prospectively determine whether the incidence of obstructive sleep apnea in patients with recent stroke was significantly different from that of a sex- and age-matched control group with no major medical problems. Methods We prospectively performed overnight polysomnography in 24 patients with a recent stroke (13 men and 11 women; mean age [±SD], 64.6±10.4 years) and 27 subjects without stroke (13 men and 14 women; mean age, 61.6±8.8 years). Patients with either ischemic or hemorrhagic stroke were entered into this study. Polysomnographic evaluations were performed within approximately 2 to 5 weeks after each patient’s stroke. Results Obstructive sleep apnea was found in 10 of 13 men with stroke (77%) and in only 3 of 13 male subjects without stroke (23%) ( P =.0169). Seven of 11 women with stroke (64%) had obstructive sleep apnea, while only 2 of 14 female subjects without stroke (14%) had obstructive sleep apnea ( P =.0168). For men with stroke, the mean apnea/hypopnea index (±SE) was 21.5±4.2 events per hour, while for male subjects without stroke it was 4.8±1.8 events per hour ( P =.0014). For women with stroke the mean apnea/hypopnea index was 31.6±8.8 events per hour, while for female subjects without stroke it was 2.9±1.6 events per hour ( P =.0024). The 4-year mortality for patients with stroke was 20.8%. All patients with stroke who died had obstructive sleep apnea. Conclusions Patients with stroke have an increased incidence of obstructive sleep apnea compared with normal sex- and age-matched control subjects. Hypoxia and hemodynamic responses to obstructive sleep apnea may have predisposed these patients to stroke.This publication has 19 references indexed in Scilit:
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