Kircher S, et al. - In ablation-naive patients with paroxysmal or persistent atrial fibrillation (AF), enrolled in this randomized single-center study, researchers compared the efficacy and safety of pulmonary vein isolation (PVI) plus voltage-guided ablation vs PVI with or without linear ablation depending on the type of AF. As per findings, a significantly higher arrhythmia-free survival rate was achieved with individually tailored substrate modification guided by voltage mapping vs a conventional approach applying linear ablation according to AF type.