Why the study?
How do widely-split pulmonary vein double potentials respond to pulmonary vein isolation in patients with paroxysmal atrial fibrillation?
Case Report (n=2)
How do widely-split pulmonary vein double potentials respond to pulmonary vein isolation in patients with paroxysmal atrial fibrillation?
Recognizing unusual pulmonary vein electrophysiology, such as widely-split double potentials, is important for tailoring patient- and mechanism-specific approaches to catheter ablation for atrial fibrillation.
May aid recognition of unusual PV potentials during ablation; leaves open impact on outcomes in larger cohorts.
Left atrial muscle sleeves extending over the pulmonary veins are critical to the initiation of atrial fibrillation (AF) in some patients. This report describes two patients with paroxysmal AF who demonstrate widely-split pulmonary vein (PV) double potentials at the pulmonary vein ostium during sinus rhythm. The response by the double potentials to PV isolation is also characterized. These cases emphasize the importance of recognizing unusual PV electrophysiology and using patient- and mechanism-specific approaches to catheter ablation for AF.
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Kim et al. (2007) conducted a case report in Paroxysmal atrial fibrillation (n=2). Pulmonary vein isolation was evaluated on Response of double potentials to pulmonary vein isolation.
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