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J Korean Sleep Res Soc. 2008;5(1):43-48.         doi: https://doi.org/10.13078/jksrs.08007
Excessive Daytime Sleepiness in Patients with Obstructive Sleep Apnea
Dain Lee, Ho-Won Lee, Byung-Wook Kang, Jun-Young Kim, Jung-Soo Kim, and Sung-Pa Park
1Department of Neurology, Kyungpook National University School of Medicine, Daegu, Korea
2Brain Science & Engineering Institute, Kyungpook National University, Daegu, Korea
3Department of Otorhinolaryngology, Kyungpook National University School of Medicine, Daegu, Korea
Corresponding Author: Ho-Won Lee ,Tel: +82-53-420-5756, Fax: +82-53-422-4265, Email: neuromd@knu.ac.kr
Received: 8 June 2008;  Accepted: 22 June 2008.
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Excessive daytime sleepiness (EDS) is a well-recognized consequence of obstructive sleep apnea. EDS is considered an important health problem leading to impaired concentration, accidents, and poor quality of life. The aim of this study is to evaluate EDS and know the correalation between EDS and polysomnographic findings. 150 patients who visited our sleep clinic for snoring or sleep apnea were studied. Among them, 93 patients were included who had no history of previous diagnosis and treatment of OSA (Obstructive sleep apnea) and whose AHI (Apnea-Hypopnea Index) was more than 5 checked on polysomnography (PSG) had newly diagnosed as OSA. They completed sleep questionnaires and overnight PSG. The association between EDS and other data from PSG and demographic data were further assessed by correalation analysis. There were 93 patients comprising 75(80.1)% males and 18(19.9)% females. Their mean age was 44¢®¨u1.4years, and co-morbidity index was 0.2¢®¨u0.5. EDS was demonstrated in 34(36.6%). The EDS correlated poorly with PSG variables, demographic data, and comorbidity. To assess the EDS appropriately, further studies including follow up PSG would be needed.
Keywords: Excessive daytime sleepiness | Obstructive sleep apnea | Polysomnography | Comorbidity
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