The roles of CHA2DS2-VASc score and blood inflammatory parameters in predicting the patency of saphenous vein grafts in patients with coronary artery bypass graft surgery

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Cihan Aydın
Mustafa Abanoz


Objective: Coronary artery bypass graft (CABG) surgery is a common treatment method in which saphenous vein grafts (SVG) and arterial grafts are used together in severe coronary artery disease. The CHA2DS2-VASc score is used to predict thromboembolic events in nonvalvular atrial fibrillation as well as to predict prognosis in cardiovascular events.  In this study, we planned to research the relation between CHA2DS2-VASc score and postoperative SVG patency rates in patients undergoing CABG.

Materials and Methods: One hundred seventeen patients with angina after CABG surgery who underwent coronary angiography were analyzed retrospectively. Stenosis of 50% or more in at least one saphenous vein graft was accepted as saphenous vein graft disease (SVGD). We compared these patients in two groups concerning the presence of 50% or more stenosis in the SVG. These two groups were; Group 1 (n = 66); with saphenous vein graft disease, Group 2 (n = 51) without saphenous vein graft disease, respectively.

Results: A total of 117 patients participating in the study. Sixty-six patients in group 1 had SVGD (Mean age: 68,13±8,22, 60,6% male). Fifty-one patients in group 2 did not have SVGD (Mean age: 66,92±9,44, 72,5% male ). The mean CHA2DS2-VASc score was significantly higher in group 1 compared to group 2. [5 (2-7) vs.  2 (1-7), respectively, P<0,001]. As a result of multivariate analysis, CHA2DS2-VASc score (OR: 5,263, CI 95%: 2,176- 12,728, P<0.001) and SII (OR: 1,236, CI 95%: 1,120-2,955, P=0.007) were determined as independent predictors for predicting SVGD

Conclusion: In the light of the results we have found, the CHA2DS2-VASc score and SII, which are easy to calculate in daily practice, can help us in predicting SVGD.


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Aydın, C., & Abanoz, M. (2021). The roles of CHA2DS2-VASc score and blood inflammatory parameters in predicting the patency of saphenous vein grafts in patients with coronary artery bypass graft surgery. Medical Science and Discovery, 8(10), 601–607.
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