Double atrial potentials recorded in the coronary sinus in patients with Wolff-Parkinson-White syndrome: a possible mechanism of induced atrial fibrillation

Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing
Ming-Hsiung HsiehShih-Ann Chen

Abstract

Double atrial potentials recorded in the coronary sinus are not an unusual phenomenon in patients with supraventricular tachyarrhythmias. They have been demonstrated to potentiate the occurrence of atrial tachyarrhythmias. Two hundred and forty-eight patients were included for investigating the presence of double atrial potentials on the coronary sinus recordings during electrophysiologic study. Group 1 consisted of 136 patients with WPW syndrome and group 2 consisted of 112 patients with atrioventricular nodal reentrant tachycardia (AVNRT). Group 1 patients had a higher incidence of induced atrial fibrillation (AF) (27% vs. 15%, P = 0.045) than group 2 patients. In addition, the incidence of double atrial potentials was significantly higher in group 1 than in group 2 patients (14% vs. 2%, P = 0.001). In group 1, 19 patients with double atrial potentials had a significantly higher incidence of left lateral bypass tracts (79% vs. 39%, P = 0.001) and induced AF (47% vs. 22%, P = 0.01) than 117 patients without double atrial potentials. WPW syndrome, especially with a left lateral bypass tract, had a higher incidence of double atrial potentials and induced AF than AVNRT. WPW patients with double atrial potentials had a higher inci...Continue Reading

Citations

Oct 22, 2009·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Kumral Ergun CagliHalil Lutfi Kisacik
Sep 25, 2017·Journal of Cardiovascular Electrophysiology·Krzysztof BłaszykMichał Michalak
Sep 14, 2019·Pacing and Clinical Electrophysiology : PACE·Ourania S Kotsiou, Ioannis K Xirogiannis

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