Optimal ablation strategy for arrhythmia recurrence following persistent atrial fibrillation ablation; anatomy or electrophysiology?

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Abstract
The optimal strategy for ablation of persistent atrial fibrillation (PsAF) remains to be defined. Established substrate‐based ablation techniques, particularly techniques targeting complex electrograms, with complementary linear ablation for organized atrial tachycardias, have been associated with modest success rates. Recently, the development of VoM ethanol ablation (Et‐VoM) has facilitated ablation of previously inaccessible arrhythmogenic substrate. This has allowed comparison of a standardized anatomically‐guided protocol with Et‐VOM to a traditional electrophysiology‐guided approach for PsAF ablation.

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