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- Title
Severe obstructive sleep apnea: Sleepy versus nonsleepy patients.
- Authors
Oksenberg, Arie; Arons, Elena; Nasser, Khitam; Shneor, Ophir; Radwan, Henryk; Silverberg, Donald S.
- Abstract
Objectives/Hypothesis: To compare demographic and polysomnographic data of sleepy versus nonsleepy severe obstructive sleep apnea (OSA) patients according to the Epworth Sleepiness Scale (ESS). Study Design: Retrospective cohort. Methods: Six hundred forty-four consecutive severe (apnea-hypopnea index [AHI] ≥ 30) adult OSA patients who underwent a polysomnographic evaluation in our sleep disorders unit. ESS data were available in 569 (88.3%). Three hundred twenty-seven (57.5%) patients had ESS > 10. Results: Sleepy severe OSA patients are slightly younger and more obese than nonsleepy patients. These sleepy patients have shorter sleep latency and lower percentage of slow wave sleep. They consistently show a higher AHI, both supine and lateral AHI, have a higher number of short arousals, and a higher arousal index. They also have higher snoring loudness in the supine and both lateral positions and a lower minimal SaO2 in rapid eye movement and non-rapid eye movement sleep. After adjusting for confounders, a logistic regression model points to apnea index as a significant prognostic factor for excessive daytime sleepiness. Conclusions: Severe OSA sleepy patients have a syndrome that is significantly more severe than nonsleepy patients. Sleepy patients have worse sleep-related breathing parameters, and their sleep patterns are lighter and more fragmented than nonsleepy patients. Apnea index appears as an important prognostic factor for excessive daytime sleepiness. Laryngoscope, 2010
- Subjects
SLEEP apnea syndromes; SLEEP therapy; HEALTH; SLEEP; LOGISTIC regression analysis; SNORING; COMPARATIVE studies
- Publication
Laryngoscope, 2010, Vol 120, Issue 3, p643
- ISSN
0023-852X
- Publication type
Article
- DOI
10.1002/lary.20758