Heart rhythm : the official journal of the Heart Rhythm Society

The most recent articles from: Heart Rhythm August 2019

Heart Rhythm · Aug 2019

Evolution of post-pulmonary vein isolation atrial fibrillation inducibility at redo ablation: Electrophysiological evidence of extra-pulmonary vein substrate progression.

The electrophysiological substrate underlying atrial fibrillation (AF) progression remains difficult to identify. ⋯ Patients with AFr after first ablation exhibit IP more frequently at redo ablation than do patients with OATr. IP correlates with more advanced AFr type, larger LA volumes, and progressive right atrial enlargement. PV reconnection is not associated with AFr. Changes in post-PVI AFI may accurately indicate progression of extra-PV AF-maintaining substrate.

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