Journal of Rhinology 2008;15(1):55-61.
Published online May 31, 2008.
Difference of Polysomnographic, Anthropometric, Physical and Radiologic Findings in an Obstructive Sleep Apnea Syndrome Patient with Excessive Daytime Sleepiness
Sun kyu Lee, Sung Wan Kim, Young Chan Lee, Sang Hoon Kim, Young Gyu Eun, Joong Saeng Cho
Department of Otorhinolaryngology and Head and Neck Surgery, College of Medicine, KyungHee University, Seoul, Korea.
주간과다수면증이 있는 폐쇄성 수면무호흡증 환자의 수면다원 검사 및 이학적 검사 소견의 차이점
이선규, 김성완, 이영찬, 김상훈, 은영규, 조중생
경희대학교 의과대학 이비인후과학교실
Background and Objectives
Excessive daytime sleepiness (EDS) is a well-known consequence of the obstructive sleep apnea syndrome (OSAS) and can be the cause of several psycho-social problems. The objective degree of EDS measured by the multiple sleep latency test is not correlated with the subjective degree of EDS. We examined EDS according to Epworth sleepiness scale (ESS) in OSAS and evaluated the difference between EDS group and non-EDS group.
Materials and Method
S: One hundred sixteen patients diagnosed with OSAS and prepared for surgical treatment were evaluated for this study. They were divided between EDS and non-EDS groups by a Korean version of ESS questionnaire. Also, they were given a physical examination and checked for anthropometric parameters, factors related with respiration and sleep architecture during sleep. Then, we measured the difference of sleep parameters between the EDS group and non-EDS group and found correlated factors of sleep with EDS measured by ESS. RESULT: There were no significant differences in the physical examination, anthropometric factors and sleep architecture between the EDS group and non-EDS group. Only the parameters of arousal (arousal with respiration, total arousal) were different between the two groups. ESS score showed a correlation with parameters of arousal, apnea index and apnea-hypopnea index with weak correlation efficiency.
The parameters related with arousal revealed that there was a difference between the EDS group and non-EDS group. Some parameters including apnea, apnea-hypopnea index showed a correlation with ESS score. It suggests that EDS could develop and be aggravated by sleep fragmentation occurring from OSAS.
Key Words: Obstructive sleep apnea syndrome;Excessive daytime sleepiness;Epworth sleepiness scale

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