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Increased Risk of Ischemic Stroke during Sleep in Apneic Patients.


ABSTRACT: The literature indicates that obstructive sleep apnea (OSA) increases the risk of ischemic stroke. However, the causal relationship between OSA and ischemic stroke is not well established. This study examined whether preexisting OSA symptoms affect the onset of acute ischemic stroke.We investigated consecutive patients who were admitted with acute ischemic stroke, using a standardized protocol including the Berlin Questionnaire on symptoms of OSA prior to stroke. The collected stroke data included the time of the stroke onset, risk factors, and etiologic subtypes. The association between preceding OSA symptoms and wake-up stroke (WUS) was assessed using multivariate logistic regression analysis.We identified 260 subjects with acute ischemic strokes with a definite onset time, of which 25.8% were WUS. The presence of preexisting witnessed or self-recognized sleep apnea was the only risk factor for WUS (adjusted odds ratio=2.055, 95% confidence interval=1.035-4.083, p=0.040).Preexisting symptoms suggestive of OSA were associated with the occurrence of WUS. This suggests that OSA contributes to ischemic stroke not only as a predisposing risk factor but also as a triggering factor. Treating OSA might therefore be beneficial in preventing stroke, particularly that occurring during sleep.

SUBMITTER: Kim JS 

PROVIDER: S-EPMC5897199 | biostudies-other | 2018 Apr

REPOSITORIES: biostudies-other

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Increased Risk of Ischemic Stroke during Sleep in Apneic Patients.

Kim Jin Soo JS   Kim Seongheon S   Lee Seung Hwan SH   Lee Hee Young HY   Lee Seo Young SY   Im Kyoung Bin KB  

Journal of clinical neurology (Seoul, Korea) 20180228 2


<h4>Background and purpose</h4>The literature indicates that obstructive sleep apnea (OSA) increases the risk of ischemic stroke. However, the causal relationship between OSA and ischemic stroke is not well established. This study examined whether preexisting OSA symptoms affect the onset of acute ischemic stroke.<h4>Methods</h4>We investigated consecutive patients who were admitted with acute ischemic stroke, using a standardized protocol including the Berlin Questionnaire on symptoms of OSA pr  ...[more]

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