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학술저널
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한국심초음파학회 Journal of Cardiovascular Imaging Journal of Cardiovascular Imaging 제26권 제2호
발행연도
2018.1
수록면
65 - 74 (10page)

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BACKGROUND: Increased epicardial fat is known to be associated with the presenceand chronicity of atrial fibrillation (AF). Free fatty acids (FFAs) are major componentsof epicardial fat; however, their potential association with AF in ischemic stroke has notbeen investigated. We aimed to assess the performance of echocardiographic epicardial fatthickness (EFT) and plasma FFA level in identifying patients with ischemic stroke and AF. METHODS: We enrolled a total of 214 consecutive patients (mean age, 66.8 ± 12.3 years;39.7% women) diagnosed with acute ischemic stroke between March 2011 and June 2014. Thepatients were divided into two groups: ischemic stroke with AF (n = 35, 16.4%) and ischemicstroke without AF (n = 179, 83.6%). RESULTS: The ischemic stroke with AF group showed significantly higher serum FFA level(1379.7 ± 717.5 vs. 757.8 ± 520.5 uEq/L, p < 0.0001) and EFT (6.5 ± 1.2 vs. 5.3 ± 1.2 mm, p < 0.001)than the group without AF. Multivariable logistic regression analysis demonstrated that age(odds ratio [OR], 1.112), serum FFA level (OR, 1.002), and EFT (OR, 1.740) were independentlyassociated with the ischemic stroke group with AF. EFT and FFA significantly improved thegoodness-of-fit and discriminability of the simple regression model including age as a covariate(log likelihood difference, 21.35; p < 0.001; c-index difference, 17.9%; p < 0.001). CONCLUSIONS: High EFT and serum FFA level were associated with ischemic stroke inpatients with AF. Echocardiographic EFT and serum FFA level can play a significant role inidentifying ischemic stroke with AF.

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