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Widely‐Split Double Potentials at the Pulmonary Vein Ostium in Patients with Atrial Fibrillation
Author(s) -
KIM SUSAN S.,
ROBERTS MICHAEL,
BURKE MARTIN C.,
KNIGHT BRADLEY P.
Publication year - 2007
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2007.00882.x
Subject(s) - medicine , pulmonary vein , ostium , atrial fibrillation , cardiology , catheter ablation , ablation , sinus rhythm , paroxysmal atrial fibrillation , coronary sinus , vein
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.