Efficacy of Left Atrial Voltage-Based Catheter Ablation of Persistent Atrial Fibrillation.

<h4>Background</h4>Low-voltage zones (LVZs) represent fibrotic tissue and are substrates for atrial fibrillation (AF). We hypothesized that LVZ-based substrate modification along with pulmonary vein isolation (PVI) would improve outcomes in persistent AF (PeAF) patients with LVZs, whereas PVI alone ... View More