Risk Factors Of Early Recurrence Of Valvular Atrial Fibrillation After Surgical Radiofrequency Ablation

Objective:The purpose of this study was to explore the risk factors of early recurrence of atrial fibrillation (AF) after surgical radiofrequency ablation in patients undergoing cardiac valve surgery.Methods:Retrospective analysis was made in201cardiac valve patients undergoing concomitant radiofrequency modified Maze operation from January2010to May2012in Nanjing Drum Tower Hospital. Multivariate logistic regression analysis was used to screen independent risk factors for predicting early recurrence of AF.Results:Excluding five patients died after surgery,196patients were finished the monitoring of heart rhythm.98cases maintained stable sinus rhythm (SR), whereas other98cases developed AF recurrence during the postoperative hospital stay. Multivariate logistic regression analysis found duration of AF, hypertension and left atrial size were independent risk factors for predicting AF early recurrence.Conclusions:Long duration of AF, history of hypertension and enlargement of left atrium can impact short-term outcome of surgical radiofrequency ablation in patients undergoing cardiac valve surgery. They can be used in clinical practice to choose more suitable cardiac valve patients with AF for surgical ablation. Thus, it can help to improve the exactness and success rate of terminating AF in this kind of patients, and reduce the waste of medical resources and the economic burden of valvular patients.