![]() Multivariate Cox regression analysis revealed that CHA 2DS 2-VASc score (hazard ratio = 1.736 95% confidence interval = 1.370–2.201 P < 0.001) was significantly associated with postablation new-onset AF (area under the curve = 0.797). Results: During a mean follow-up period of 24.6 ± 16.9 months, at least one episode of AF occurred in 33 (32%) patients. The endpoint was occurrence of new-onset AF during follow-up. Methods: This was a retrospective study of 103 typical AFL patients with no prior history of AF, who underwent successful CTI ablation. In this study, we assessed whether the CHA 2DS 2-VASc score is a useful predictor of new-onset AF after CTI ablation in typical AFL patients without a prior history of AF. Currently, there are limited data on the utility of CHA 2DS 2-VASc score to predict new-onset AF after typical AFL ablation. Purpose: Cavotricuspid isthmus (CTI) ablation is an effective procedure for typical atrial flutter (AFL), but patients remain at an elevated risk for developing new atrial fibrillation (AF). 3Department of Cardiology, Fuwai Hospital Chinese Academy of Medical Sciences Shenzhen, Shenzhen, China.2Faculty of Medicine, Dalian Medical University, Dalian, China.1Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.Fei Liu 1† Zechang Xin 2† Khalid Bin Waleed 1,3† Yajuan Lin 1 Gary Tse 1 Andrew Luhanga 1 Yuanjun Sun 1 Lianjun Gao 1 Xiaomeng Yin 1* Yunlong Xia 1*
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