Mid and long-term outcomes of catheter ablation of recurrent atrial tachycardias post Mini-Maze surgery / 中国介入心脏病学杂志
Chinese Journal of Interventional Cardiology
; (4): 372-378, 2017.
Article
in Zh
| WPRIM
| ID: wpr-611372
Responsible library:
WPRO
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.
Full text:
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Index:
WPRIM
Type of study:
Prognostic_studies
Language:
Zh
Journal:
Chinese Journal of Interventional Cardiology
Year:
2017
Type:
Article