A clinical study on the electrophysiological characteristics of patients without recurrence after ablation of persistent atrial fibrillation

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• 作者：Shao-Hui Wu ; Mu Qin ; Wei-Feng Jiang ; Yuan-Long Wang ; Kai Xu ; Dao-Liang Zhang ; Xiao-Dong Zhang ; Xu Liu ; ^{xkliuxu@yeah.net}
• 关键词：AF ; atrial fibrillation ; APBs ; atrial premature beats ; AT ; atrial tachycardia ; AVNRT ; atrioventricular nodal reentrant tachycardia ; CFAEs ; complex fragmented atrial electrograms ; CS ; coronary sinus ; EF ; ejection fraction ; EP ; electrophysiological ; GP ; ganglionated plexus ; LA ; left atrial ; LAD ; left atrial diameter ; LIPV ; left inferior pulmonary vein ; LSPV ; left superior pulmonary vein ; MI ; mitral isthmus ; OAT ; oral anticoagulant therapy ; PAF ; paroxysmal atrial fibrillation ; PVI ; pulmonary vein i
• 刊名：International Journal of Cardiology
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：228
• 期：Complete
• 页码：853-860
• 全文大小：1249 K
• 卷排序：228

文摘

The electrophysiological characteristics of patients without recurrence after ablation of persistent atrial fibrillation (AF) have not been systematically determined. This study compared the electrophysiological characteristics in patients with and without recurrence of AF after persistent AF ablation.MethodsForty-five patients without recurrence of AF after persistent AF ablation were enrolled to assess electrophysiological characteristics including pulmonary vein (PV) reconnection, the mitral isthmus (MI) line and the roof line reconduction. Ninety-five patients with recurrence of AF after ablation were used as the control group.ResultsAmong patients without recurrence, recovery of PV conduction was observed in 37 of 45 (82.2%) patients: 3/45 (6.7%) reconnection in 4 veins, 7/45 (15.6%) in 3 veins, 11/45 (24.4%) in 2 veins, and 16/45 (35.6%) in 1 vein. No significant differences were seen in the proportion of patients with PV reconnection compared to patients with recurrence (p > 0.05). Among patients without recurrence, the MI line reconduction was observed in 3/45 (6.7%) patients; the roof line conduction was observed in 5/45 (11.1%) patients. In comparison, patients with clinical recurrence of AF had recovery of the MI line conduction in 27/95 (28.4%) and recovery of the roof line conduction in 26/95 (27.4%). Significant differences were seen between these two groups (6.7% vs 28.4%, p = 0.004; 11.1% vs 27.4%, p = 0.031).ConclusionAlthough a high incidence of PV reconnection was similarly observed in patients with and without recurrence of AF, a lower incidence of lines reconduction was observed in patients without recurrence of AF.