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Difference in spectral power density of sleep EEG between patients with simple snoring and those with obstructive sleep apnoea.

ABSTRACT: Patients with simple snoring (SS) often complain of poor sleep quality despite a normal apnoea-hypopnoea index (AHI). We aimed to identify the difference in power spectral density of electroencephalography (EEG) between patients with SS and those with obstructive sleep apnoea (OSA). We compared the absolute power spectral density values of standard EEG frequency bands between the SS (n?=?42) and OSA (n?=?129) groups during the non-rapid eye movement (NREM) sleep period, after controlling for age and sex. We also analysed partial correlation between AHI and the absolute values of the EEG frequency bands. The absolute power spectral density values in the beta and delta bands were higher in the OSA group than in the SS group. AHI also positively correlated with beta power in the OSA group as well as in the combined group (OSA?+?SS). In conclusion, higher delta and beta power during NREM sleep were found in the OSA group than in the SS group, and beta power was correlated with AHI. These findings are microstructural characteristics of sleep-related breathing disorders.

SUBMITTER: Kang JM

PROVIDER: S-EPMC7145832 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Difference in spectral power density of sleep EEG between patients with simple snoring and those with obstructive sleep apnoea.

Kang Jae Myeong JM Kim Seon Tae ST Mariani Sara S Cho Seo-Eun SE Winkelman John W JW Park Kee Hyung KH Kang Seung-Gul SG

Scientific reports 20200409 1

Patients with simple snoring (SS) often complain of poor sleep quality despite a normal apnoea-hypopnoea index (AHI). We aimed to identify the difference in power spectral density of electroencephalography (EEG) between patients with SS and those with obstructive sleep apnoea (OSA). We compared the absolute power spectral density values of standard EEG frequency bands between the SS (n = 42) and OSA (n = 129) groups during the non-rapid eye movement (NREM) sleep period, after controlling for age ...[more]

PMID: 32273528

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Project description:ObjectiveTo assess the frequency of obstructive sleep apnoea among women with and without hypertensive disorders of pregnancy.DesignCohort study.SettingObstetric clinics at an academic medical centre.PopulationPregnant women with hypertensive disorders (chronic hypertension, gestational hypertension, or pre-eclampsia) and women who were normotensive.MethodsWomen completed a questionnaire about habitual snoring and underwent overnight ambulatory polysomnography.Main outcome measuresThe presence and severity of obstructive sleep apnoea.ResultsObstructive sleep apnoea was found among 21 of 51 women with hypertensive disorders (41%), but in only three of 16 women who were normotensive (19%, chi-square test, P=0.005). [Author correction added on 16 June 2014, after first online publication: Results mentioned in the abstract were amended.] Non-snoring women with hypertensive disorders typically had mild obstructive sleep apnoea, but >25% of snoring women with hypertensive disorders had moderate to severe obstructive sleep apnoea. Among women with hypertensive disorders, the mean apnoea/hypopnoea index was substantially higher in snorers than in non-snorers (19.9±34.1 versus 3.4±3.1, P=0.013), and the oxyhaemoglobin saturation nadir was significantly lower (86.4±6.6 versus 90.2±3.5, P=0.021). Among women with hypertensive disorders, after stratification by obesity, the pooled relative risk for obstructive sleep apnoea in snoring women with hypertension compared with non-snoring women with hypertension was 2.0 (95% CI 1.4-2.8).ConclusionsPregnant women with hypertension are at high risk for unrecognised obstructive sleep apnoea. Although longitudinal and intervention studies are urgently needed, given the known relationship between obstructive sleep apnoea and hypertension in the general population, it would seem pertinent that hypertensive pregnant women who snore should be tested for obstructive sleep apnoea, a condition believed to cause or promote hypertension.

Dataset Information

Difference in spectral power density of sleep EEG between patients with simple snoring and those with obstructive sleep apnoea.

Publications

Difference in spectral power density of sleep EEG between patients with simple snoring and those with obstructive sleep apnoea.

Similar Datasets

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