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    Prognostic value of CHA2DS2 -VASc score for the long-term cardiovascular events after coronary artery bypass grafting
    (Baycinar Medical Publ-Baycinar Tibbi Yayincilik, 2023) Ercan, Abdulkadir; Gurbuz, Orcun; Culhaoglu, Zekeriya Afsin; Kumtepe, Gencehan; Ozkan, Hakan; Yuksel, Ahmet; Ener, Serdar
    Background: This study aims to investigate the value of the CHA2DS2-VASc score in predicting long-term major cardiovascular events following coronary artery bypass grafting. Methods: Between January 2008 and January 2010, a total of 559 patients (445 males, 114 females; mean age: 62.7 +/- 9.1 years; range, 35 to 84 years) who underwent elective coronary artery bypass grafting were retrospectively analyzed. At a mean of 10.7 +/- 3.1-year follow-up, major cardiovascular events were considered as the primary endpoint.Results: The multivariate Cox hazard analysis identified the CHA2DS2-VASc score as an independent predictor of major cardiovascular events (hazard ratio: 1.615; 95% confidence interval: 1.038-2.511; p=0.034). The receiver operating characteristic curve analyses revealed that 3.5 was the most optimal cut-off value of the score predicting major cardiovascular events and the patients were divided into two groups accordingly. The Kaplan-Meier analysis demonstrated a significantly higher incidence of major cardiovascular events in proportion to a higher CHA2DS2-VASc score (p<0.001).Conclusion: CHA2DS2-VASc score >= 4, which includes many risk factors for cardiovascular events, can be used as an independent predictor of long-term major cardiovascular events after coronary artery bypass grafting.