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KMID : 1034320230140030149
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Sleep Medicine Research
2023 Volume.14 No. 3 p.149 ~ p.154
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The Relationship Between Slow Wave Sleep and Blood Oxygen Saturation Among Patients With Apnea: Retrospective Study
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Ebrahim Norouzi
Ali Zakei
Alexandra J. Bratty
Habibolah Khazaie
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Abstract
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Background and Objective Prior research suggests that slow wave sleep (SWS) is disrupted in people with obstructive sleep apnea (OSA). However, it was not clear whether the reduction in SWS is related to abnormal breathing or the extent of OSA as determined by the minimum oxygen saturation. Further, there is limited research on the relationship between oxygen saturation and SWS. The present study examined the relationship between SWS and minimum oxygen saturation levels in patients with OSA.
Methods The sample consisted of 589 patients with OSA (mean age: 48.54 years) who completed full-night polysomnography.
Results Results showed that there was a significant difference in SWS scores across three apnea-hypopnea index (AHI) groups (AHI score 5?15 for mild apnea, 16?30 for moderate apnea, and >30 for severe apnea). Lower SWS scores were observed in the severe apnea group. Additionally, results indicated that as oxygen saturation decreased, the SWS scores decreased.
Conclusions Results from this study indicate that oxygen saturation significantly predicts SWS amounts. These findings suggest that interventions for low oxygen saturation could enhance the amounts of SWS. The clinical ramifications of these findings are worthy of consideration.
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KEYWORD
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Sleep medicine, Slow wave sleep, Apnea, Delta sleep, Oxygen desaturation
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