Park Geun Hyung1, Koh Tae Kyung2, Koo Soo Kweon1, Yoon Byung Woo1, Lee Sang Hoon1, Ji Chang Lok1, Woo Joo Young1. 1. Department of Otorhinolaryngology-Head and Neck Surgery, Busan Saint Mary's Hospital, 538-41 Yongho-dong, Nam-gu, Busan, Korea. 2. Department of Otorhinolaryngology-Head and Neck Surgery, Busan Saint Mary's Hospital, 538-41 Yongho-dong, Nam-gu, Busan, Korea. ktk0305@hotmail.com.
Abstract
PURPOSE: The prevalence of rapid eye movement obstructive sleep apnea (REM-OSA) varies among reports. It remains unclear whether or not patients with REM-OSA experience more severe daytime sleepiness and poorer sleep quality than those with sleep-stage-independent obstructive sleep apnea (IND-OSA). We investigated the prevalence of REM-OSA in a Korean population sample and determined whether or not REM-OSA was associated with poor sleep quality and daytime sleepiness. METHOD: In this retrospective study. we defined "REM-OSA 1" as an apnea-hypopnea index (AHI) ≥ 5 and AHIREM/AHINREM ratio ≥ 2. Patients who also had an AHINREM < 15 were classified as "REM-OSA 2" and those with an AHINREM < 8 and REM sleep duration ≥ 10.5 min were classified as "REM-OSA 3." Patient characteristics, Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), and polysomnography variables were compared between the REM-OSA and IND-OSA groups. RESULTS: Among 483 patients, the prevalence rates of REM-OSA 1-3 were 10.3%, 5.5%, and 2.2% respectively. OSA severity was significantly lower in REM-OSA 1-3 than in IND-OSA. The proportion of women was significantly higher in REM-OSA 1-3 than IND-OSA groups. Patients with REM-OSA 2 and 3 had a significantly lower body mass index than those with IND-OSA. Patients with moderate-to-severe REM-OSA had significantly higher PSQI scores than those with IND-OSA. The AHIREM was significantly correlated with the ESS and PSQI scores. CONCLUSIONS: Despite the relatively low prevalence and severity of REM-OSA, it may reduce sleep quality and increase daytime sleepiness in some patients.
PURPOSE: The prevalence of rapid eye movement obstructive sleep apnea (REM-OSA) varies among reports. It remains unclear whether or not patients with REM-OSA experience more severe daytime sleepiness and poorer sleep quality than those with sleep-stage-independent obstructive sleep apnea (IND-OSA). We investigated the prevalence of REM-OSA in a Korean population sample and determined whether or not REM-OSA was associated with poor sleep quality and daytime sleepiness. METHOD: In this retrospective study. we defined "REM-OSA 1" as an apnea-hypopnea index (AHI) ≥ 5 and AHIREM/AHINREM ratio ≥ 2. Patients who also had an AHINREM < 15 were classified as "REM-OSA 2" and those with an AHINREM < 8 and REM sleep duration ≥ 10.5 min were classified as "REM-OSA 3." Patient characteristics, Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), and polysomnography variables were compared between the REM-OSA and IND-OSA groups. RESULTS: Among 483 patients, the prevalence rates of REM-OSA 1-3 were 10.3%, 5.5%, and 2.2% respectively. OSA severity was significantly lower in REM-OSA 1-3 than in IND-OSA. The proportion of women was significantly higher in REM-OSA 1-3 than IND-OSA groups. Patients with REM-OSA 2 and 3 had a significantly lower body mass index than those with IND-OSA. Patients with moderate-to-severe REM-OSA had significantly higher PSQI scores than those with IND-OSA. The AHIREM was significantly correlated with the ESS and PSQI scores. CONCLUSIONS: Despite the relatively low prevalence and severity of REM-OSA, it may reduce sleep quality and increase daytime sleepiness in some patients.
Authors: Naresh M Punjabi; Karen Bandeen-Roche; Jason J Marx; David N Neubauer; Philip L Smith; Alan R Schwartz Journal: Sleep Date: 2002-05-01 Impact factor: 5.849
Authors: Simon S Smith; Tian P S Oei; James A Douglas; Ian Brown; Greg Jorgensen; Jonathan Andrews Journal: Sleep Med Date: 2007-10-24 Impact factor: 3.492