Why the study?
What are the electrophysiologic findings and clinical outcomes of repeat catheter ablation using contact force-sensing RF catheters for recurrent atrial fibrillation?
What are the electrophysiologic findings and clinical outcomes of repeat catheter ablation using contact force-sensing RF catheters for recurrent atrial fibrillation?
Repeat AF ablation using contact force-sensing RF catheters provides a 66% freedom from atrial arrhythmia at 1 year with a very low rate of major complications, regardless of initial ablation modality or AF type.
May guide repeat ablation decisions in recurrent AF; extends observational data but leaves open need for randomized confirmation.
In a contemporary cohort of patients receiving their first repeat AF ablations using contact force-sensing RF catheters, PV reconnections were common, and freedom from atrial arrhythmia was 66% at 1-year follow-up. The distributions of PV reconnections and rates of freedom from atrial arrhythmia were similar, based on persistent versus paroxysmal AF at presentation for repeat ablation, index RF versus CB ablation, and duration between index and repeat procedures. The incidence of major complications was very low.
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Daimee et al. (2021) studied this question.
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