Atrial voltage mapping: tailoring ablation approach by targeting the arrhythmogenic substrate

The interplay between triggers, arrhythmogenic substrate and modulators determines the pathophysiological and cli-Although mainly based on pulmonary vein isolation empirical ablation approaches targeting extrapulmonary substrate have also been introduced. These include creation of linear lesions, extensive ablation of LA posterior wall, targeting fractionated electrograms, rotors maintaining AF, etc. However, many of these approaches are just empirical and do introduced to explain the occurrence and clinical course of many conditions including AF. Atrial voltage mapping is incablation of AF seems to be associated with better clinical outcomes. This review focuses on the association between atrial substrate. It also summarises the available data from clinical trials examining the role of voltage-driven ablation on procedural outcome on AF patients.