Mid and long-term outcomes of catheter ablation of recurrent atrial tachycardias post Mini-Maze surgery
10.3969/j.issn.1004-8812.2017.07.002
- VernacularTitle:导管消融治疗迷宫术后复发房性心动过速的中、远期疗效分析
- Author:
Sulin ZHENG
;
Xianzhang ZHAN
;
Yumei XUE
;
Xianhong FANG
;
Hongtao LIAO
;
Hai DENG
;
Wei WEI
;
Zili LIAO
;
Fangzhou LIU
;
Yang LIU
;
Yuanhong LIANG
;
Shulin WU
- Keywords:
Atrial fibrillation;
Surgical ablation;
Cox-Maze;
Atrial tachycardia;
Catheter ablation
- From:
Chinese Journal of Interventional Cardiology
2017;25(7):372-378
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the clinical characteristics and follow-up data of catheter ablation of recurrent atrial tachycardias (ATs) after Mini-Maze surgery,and to explore prognostic factors for recurrence.Methods 59 patients in Guangdong General Hospital with ATs post Mini-Maze and concomitant open-heart surgery from April.2010 to June.2015 were included.According to high density precise mapping,activation mapping,voltage mapping and entrainment mapping,they underwent electrophysiological study and ablation which was guided by three-dimensional mapping system.All patients were followed up regularly.We explored the prognostic factors for recurrence by the Cox regression analysis.Results There were 88 types of ATs being mappedwith mean (1.49 ± 0.75) types of ATs identified per case.Most ATs were macro-reentry ATs(67/88,76.1％)and focal ATs (20/88,22.7％),respectively.56 patients (94.9％) achieved immediate ablation success.In a mean follow-up of (30.8 ± 17.7) months,recurrences were observed in 12 patients after the first time catheter ablation.Recurrent time was 3.5 (1.3,12.0) months and the overall ablation success rate was 74.6％ (44/59).6 patients received second ablation and the achievement of freedom from arrhythmias reached 79.7％ (47/59).Multivariate analysis showed that the LA diameter was the independent predictor for recurrence (HR 1.108,95％ CI 1.002 to 1.226,P =0.045).Conclusion Catheter ablation of ATs post Mini-Maze with concomitant surgery is save and feasible.LA diameter is the independent predictor for recurrence.
