Journal of cardiovascular electrophysiology
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J. Cardiovasc. Electrophysiol. · Sep 2016
Efficacy of Left Atrial Voltage-Based Catheter Ablation of Persistent Atrial Fibrillation.
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 would work in patients without LVZs. ⋯ Additional LVZ-based substrate modification after PVI improved the outcome in PeAF patients with LVZs, whereas PVI alone worked in patients without LVZs, even in those with PeAF.