Excessive daytime sleepiness in obstructive sleep apnea: prevalence, severity, and predictors

被引:127
|
作者
Seneviratne, U
Puvanendran, K
机构
[1] Natl Inst Neurosci, Dept Neurol, Singapore 169608, Singapore
[2] Singapore Gen Hosp, Sleep Disorders Unit, Singapore 169608, Singapore
关键词
obstructive sleep apnea; excessive daytime sleepiness; snoring; multiple sleep latency test;
D O I
10.1016/j.sleep.2004.01.021
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objectives: To assess prevalence, severity, and predictive factors of excessive daytime sleepiness (EDS) in obstructive sleep apnea (OSA) in an Asian population. Methods: A retrospective, cross-sectional study of data from patients diagnosed with OSA over a period of three years and having had overnight polysomnography (PSG) followed by daytime multiple sleep latency test (MSLT). Respiratory disturbance index (RDI) was used for diagnosis and assessment of severity. OSA was classified as mild (RDI 5-20), moderate (RDI 20-40), and severe (RDI > 40). EDS was objectively assessed using MSLT. According to MSLT, patients were categorized into two groups; EDS (mean sleep latency:MSL < 10) and no EDS (MSL > 10). PSG, MSLT and demographic data were subjected to univariate and multivariate analyses to ascertain predictive factors of EDS. Results: There were 195 patients comprising 89.4% males and 10.6% females. The severity of OSA was mild in 35.9%, moderate in 27.2%, and severe in 36.9%. EDS was demonstrated in 87.2%. Sleep onset REM periods were detected in the MSLT of 28.2% patients. Univariate analysis demonstrated age, RDI, sleep efficiency, total arousals, arousals with apnea, arousal index, number of desaturations, and severity of snoring as significant predictors of EDS. However, stepwise logistic regression analysis identified only sleep efficiency, total arousals, and severity of snoring as significant predictive factors. Conclusions: OSA causes EDS in the majority of patients. Severe snoring, higher sleep efficiency and increased total arousals in polysomnography seem to predict EDS. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:339 / 343
页数:5
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