Does prolonged P-wave duration (≥150 ms) on amplified 12-lead ECG predict left atrial low voltage substrate and arrhythmia recurrence in patients with persistent atrial fibrillation undergoing pulmonary vein isolation?
Prolonged P-wave duration (≥150 ms) on amplified 12-lead ECG serves as a non-invasive predictor of left atrial low voltage substrate and arrhythmia recurrence after PVI in patients with persistent AF.
Advanced arrhythmogenic LVS is associated with significant intra-atrial conduction delay, which is accurately measurable by prolongation of PWD on amplified 12-lead ECG. PWD ≥150 ms during sinus rhythm measured prior to ablation identifies patients with persistent AF who are at increased risk for arrhythmia recurrence following PVI.
Jadidi et al. (Fri,) studied this question.