Utility of the CHA2DS2-VASc Score in Prediction of Postopera
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Researchers aimed to investigate the role of CHA2DS2-VASc score and its components in prediction of postoperative atrial fibrillation (POAF) after isolated coronary artery bypass graft (CABG) surgery.

In this retrospective cohort, a total of 2981 consecutive patients who underwent isolated CABG between 2010 and 2012 were included.

All patients underwent isolated CABG and were followed until discharge or in-hospital death. The primary outcome was the development of new-onset POAF during the hospital course.

During hospitalization, continuous electrocardiogram monitoring was used to detect POAF episodes. New-onset POAF developed in 15.8% of patients following isolated CABG. Patients with POAF had significantly higher CHA2DS2-VASc scores than those without POAF (2.66±1.51 vs. 2.12±1.36). After adjusting for potential confounders, CHA2DS2-VASc score was significantly associated with POAF.

However, this effect was restricted to patients with a CHA2DS2-VASc score of more than 2. In multivariable analysis of the CHA2DS2-VASc components, age more than 75, age 64-74, hypertension, and cerebrovascular accident were independent predictors of POAF. However, the association between POAF and female gender, diabetes mellitus, congestive heart failure, and vascular disease was not statistically significant.

Conclusively, CHA2DS2-VASc score is a useful tool for the prediction of POAF after isolated CABG. However, the risk should be cautiously interpreted since the risk score's promising effect relies on only several of its components.

Source: https://www.jcvaonline.com/article/S1053-0770(21)00609-1/fulltext?rss=yes
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