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논문 기본 정보

자료유형
학술저널
저자정보
류소미 (Department of Otorhinolaryngology, Gyeongsang National University Hospital) 김상욱 (Department of Otorhinolaryngology, Gyeongsang National University Hospital) 김승찬 (Department of Biostatistics, Clinical Trial Center, Biomedical Research Institute, Pusan National University Hospital) 김록범 (Regional Cardiocerebrovascular Disease Center, Gyeongsang National University Hospital) 이병민 (Department of Otorhinolaryngology, Gyeongsang National University Hospital) 박상욱 (Department of Otorhinolaryngology, Gyeongsang National University Hospital) 전영진 (Department of Otorhinolaryngology, Gyeongsang National University Hospital) 주연희 (Department of Otorhinolaryngology, Gyeongsang National University College of Medicine) 조현진 (Department of Otorhinolaryngology, Gyeongsang National University Hospital)
저널정보
대한이비인후과학회 Clinical and Experimental Otorhinolaryngology Clinical and Experimental Otorhinolaryngology Vol.17 No.3
발행연도
2024.8
수록면
226 - 233 (8page)
DOI
10.21053/ceo.2023.00037

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Objectives. The supine sleep position and the rapid eye movement (REM) stage are widely recognized to exacerbate the se- verity of obstructive sleep apnea (OSA). Position-dependent OSA is generally characterized by an apnea-hypopnea index (AHI) that is at least twice as high in the supine position compared to other sleep positions. However, this con- dition can be misdiagnosed if a particular sleep stage—REM or non-REM (NREM)—predominates in a specific posi- tion. We explored the impact of the sleep stage on positional dependency in OSA. Methods. Polysomnographic data were retrospectively analyzed from 111 patients with OSA aged 18 years or older, all of whom had an AHI exceeding five events per hour and slept in both supine and non-supine positions for at least 5% of the total sleep time. The overall ratio of non-supine AHI to supine AHI (NS/S-AHI ratio) was compared between total, REM, and NREM sleep. Additionally, a weighted NS/S-AHI ratio, reflecting the proportion of time spent in each sleep stage, was calculated and compared to the original ratio. Results. The mean NS/S-AHI ratio was consistent between the entire sleep period and the specific sleep stages. However, the NS/S-AHI ratios for individual patients displayed poor agreement between total sleep and the specific stages. Ad- ditionally, the weighted NS/S-AHI ratio displayed poor agreement with the original NS/S-AHI ratio, primarily due to discrepancies in patients with mild to moderate OSA. Conclusion. The weighted NS/S-AHI ratio may help precisely assess positional dependency.

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