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KMID : 0359720170350010016
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Journal of the Korean Neurological Association
2017 Volume.35 No. 1 p.16 ~ p.21
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Sleep Apnea Headache in Korean Patients with Obstructive Sleep Apnea
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Kim Jeong-Min
Kim Jung-Soo
Kim Jong-Kun
Choi Jae-Kap
Lee Ho-Won
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Abstract
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Background: The prevalence of sleep apnea headache has not been established and its possible mechanism is unclear. This study evaluated the frequency of sleep apnea headache in Korean patients with obstructive sleep apnea (OSA) with the aim of identifying their clinical characteristics as well as the sleep parameters that are correlated with headache intensity.
Methods: Between January 2005 and December 2014, 2000 patients who were referred to our sleep clinic underwent overnight polysomnography and were interviewed by a neurologist. The neurologist also reviewed the medical records and headache questionnaires of 1659 patients with OSA. We selected patients with sleep apnea headache based on diagnostic criteria of the International Classification of Headache Disorders (III beta version). Descriptive statistics were applied to analyze clinical characteristics and various sleep parameters. Pearson’s correlation coefficient and single/multivariate linear regression analysis were used to identify predictors of headache intensity.
Results: Sleep apnea headache was diagnosed in 139 (8.4%) of the patients in this single-center study. The diagnosed patients had male dominancy (87.8%), severe sleep apnea (mean apnea-hypopnea index [AHI]>30), and were middle-aged (mean of 43.5 years old). The ratio of the apnea-hypopnea time to the total sleep time, AHI, the oxygen desaturation index, and the arousal index were positively correlated with headache intensity. AHI was the best predictor of headache intensity in the patients with sleep apnea headache.
Conclusions: The frequency of sleep apnea headache among the Korean patients in this study was lower than in previous studies. We found that there was a strong positive correlation between OSA severity (mostly, AHI) and headache intensity in patients with sleep apnea headache.
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KEYWORD
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Obstructive sleep apnea, Polysomnography, Headache
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