Perioperative clinical predictors of atrial fibrillation occurrence following coronary artery surgery

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Abstract
Objective: Atrial fibrillation (AF) is the most frequently encountered arrhythmic complication associated with coronary surgery. The aim of this paper was then to identify the clinical predictors of post-CABG AF occurrence. Methods: 150 consecutive patients were included in this study and divided into two groups according to the absence (SR group, 104 male and 22 female, age 58.4±8.8 years) or presence (AF group, 23 male and 1 female, age 65.4±6.3 years) of post-CABG AF. Forty-seven perioperative variables were considered. Results: After univariate analysis, advanced age (SR vs. AF: 58.4±8.8 vs. 65.4±6.3, PConclusions: Post-CABG AF seems to require a well definite anatomical and electrical substrate that is generated by increased left atrial dimensions, a greater extension of coronary lesions and a possible electrical remodeling consequent to prior repetitive episodes of paroxysmal AF.