Key result
The utility of pulsed-field ablation for non-pulmonary vein foci in atrial fibrillation remains less established, despite its known tissue selectivity and reduced risk of esophageal injury.
Why the study?
While the efficacy of pulsed-field ablation for pulmonary vein isolation has been reported, its utility for nonpulmonary vein foci in atrial fibrillation remains less established.
Pulsed-field ablation may offer a safer alternative for ablating non-pulmonary vein foci located near the esophagus due to its myocardial tissue selectivity and non-thermal energy source.
PFA may reduce esophageal injury risk versus thermal ablation; leaves open confirmation of efficacy and safety in prospective trials.
Pulsed-field ablation (PFA) introduces electroporation using a high-voltage electrical field as a nonthermal energy source. Although electroporation can be reversed, prolonged exposure to a high-voltage electrical field induces irreversible electroporation, resulting in cell death. PFA demonstrates myocardial tissue selectivity, thereby reducing the risk of esophageal injury compared with thermal ablations such as radiofrequency (RF) catheter ablation and cryoballoon ablation. The efficacy of PFA for pulmonary vein isolation (PVI) has been reported; however, its utility for nonpulmonary vein (PV) foci in atrial fibrillation (AF) remains less established.
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Arai et al. (2025) studied Atrial fibrillation. Pulsed-field ablation (PFA) vs. Thermal ablations (radiofrequency and cryoballoon) was evaluated. The utility of pulsed-field ablation for non-pulmonary vein foci in atrial fibrillation remains less established, despite its known tissue selectivity and reduced risk of esophageal injury.
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