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KMID : 0355220160410040180
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Journal of Korean Academy Oral Medicine
2016 Volume.41 No. 4 p.180 ~ p.187
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Rapid Eye Movement-Related Obstructive Sleep Apnea: A Study on the Pathogenesis through Clinical and Polysomnographic Features
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Jang Ji-Hee
Chung Jin-Woo
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Abstract
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Purpose: The aims of this study were to evaluate the differences of clinical and polysomnographic features between rapid eye movement (REM)-related obstructive sleep apnea (OSA) and not-REM-related OSA, and to suggest the pathogenesis according to the REM dependency of OSA.
Methods: One hundred ninety consecutive patients diagnosed with OSA were evaluated clinical features and performed full night polysomnography. The patients were divided into REMrelated (REM apnea-hypopnea index [AHI] at least two times higher than their non-REM AHI) and not-REM-related (a REM AHI less than two times higher than their non-REM AHI) OSA groups and evaluated the differences in age, body mass index (BMI), neck circumference, Epworth Sleepiness Scale score, and parameters of polysomnography.
Results: REM-related patients were younger and showed higher sleep efficacy, low percentage of light sleep stage (stage 1 sleep), and low rate of positional OSA. Age was significantly associated with REM dependency of OSA and REM AHI were significant correlated with BMI, neck circumference, percentage of sleep in supine position, and percentage time of snoring.
Conclusions: Our results showed that REM-related OSA patients showed less severe polysomnographic parameters than not-REM-related patients. However, significant risk factors were differed depending on the REM dependency and OSA severity, and the clinical features correlated with REM AHI and non-REM AHI were also showed differently. We suggest that the occurrence of OSA according to the REM dependency can be based on different mechanisms.
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KEYWORD
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Age, Obstructive sleep apnea, Polysomnography, Rapid eye movement, Sleep position
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