Chronic outcome of patients with nonparoxysmal atrial fibrillation underwent CARTO-guided stepwise ablation

VernacularTitle:逐级消融在非阵发性心房颤动中的临床应用
Author: Xiang-Fei FENG ¹ ; Yi-Gang LI ; Qun-Shan WANG ; Jian SUN ; Shang-Biao LU ; Qiu-Fen LU
Author Information

1. 上海交通大学医学院附属新华医院
Keywords: Atrial fibrillation; Catheter ablation
From: Chinese Journal of Cardiology 2010;38(1):39-42
CountryChina
Language:Chinese
Abstract: Objective To investigate the efficacy of CARTO-guided stepwise ablation approaches for treatment of patients with nonparoxysmal atrial fibrillation(AF). Methods Stepwise ablation approaches were performed in 40 patients with nonparoxysmal atrial fibrillation. Pulmonary vein atrium isolation (PVAI), linear ablation in atria, complex fractionated atrial electrograms (CFAEs) ablation and cardioversion were applied sequentially till sinus rhythm (SR) restoration. All patients were followed up 6 to 18 months. Results SR was restored in 11 patients after PVAI, in 11 patients after linear ablation and in 6 patients after CFEAs ablation. SR was restored in the remaining 13 patients post cardioversion. During follow-up,3 atrial fibrillation, 3 atrial tachycardia and 5 atrial flutter were evidenced. Seven out of the 11 patients with reoccurred arrhythmia were treated only by PVAI. Conclusions CARTO-guided stepwise ablation approaches are safe and effective in the treatment of patients with nonparoxysmal atrial fribrillation. PVAI approach was associated with lower successful rate and high recurrence rate.