Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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Δευτέρα 9 Μαΐου 2016

Moderate-to-severe obstructive sleep apnea is associated with cerebral small vessel disease

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Publication date: Available online 4 May 2016
Source:Sleep Medicine
Author(s): Tae-Jin Song, Jung-Hyun Park, Yoonkyung Chang, Jangsup Moon, Ju-Hee Kim, Ji Hoe Heo, Yong-Jae Kim, Hyang Woon Lee
BackgroundCerebral small vessel disease (SVD) is associated with increased risk of cerebral infarction and hemorrhage. Obstructive sleep apnea (OSA) is known to increase the risk of cerebrovascular disease. This study aimed to investigate the association between cerebral SVD and severity of OSA.MethodsA total of 170 patients were included from the patient registry at the present Sleep Center; these patients underwent both magnetic resonance imaging (MRI) of the brain and polysomnography (PSG) for suspected OSA. The presence and burden of white matter hyperintensities (WMHs), asymptomatic lacunar infarctions (ALIs), cerebral microbleeds (CMBs), and perivascular spaces (PVSs) were determined by MRI, and their relationships with the apnea-hypopnea index (AHI), as determined by PSG, were investigated.ResultsAmong the 170 patients, 25 (14.7%) had high-grade WMHs, 21 (12.4%) had ALIs, 21 (12.4%) had CMBs, and 34 (20.0%) had high-grade PVSs. In the multivariable analysis, after adjusting for factors including age, sex, and other variables for which p<0.1 in univariable analysis (hypertension, diabetes mellitus, previous stroke, minimal SaO2 and arousal index), moderate-to-severe OSA was associated with high-grade WMHs (odds ratio (OR) 4.72; 95% confidence interval (CI) 1.14-19.47), CMBs (OR 3.47; 95% CI 0.89-15.18), or high-grade PVSs (OR 3.64; 95% CI 1.02-13.01), but not with ALIs. The total SVD score was independently associated with increased AHI (p=0.017), particularly in patients with moderate-to-severe OSA (β (standard error)=0.448 (0.204), p=0.030].ConclusionModerate-to-severe OSA is positively associated with multiple indicators of cerebral SVD, including WMHs, CMBs, and PVSs.



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