Electrophysiologic characteristics of atrial tachycardia originating from the right pulmonary veins or posterior right atrium: double potentials obtained from the posterior wall of the right atrium can be useful to predict foci of atrial tachycardia in right pulmonary veins or posterior right atrium

Journal of Cardiovascular Electrophysiology
Takumi YamadaToyoaki Murohara

Abstract

The right pulmonary veins (RPVs) and posterior wall of the right atrium (PRA) are anatomically located adjacent to each other. The aim of this study was to demonstrate the electrophysiologic characteristics of atrial tachycardia (AT) originating from the PRA or RPVs. A total of 26 consecutive patients with AT originating from the RPVs or PRA underwent detailed atrial endocardial mapping and successful radiofrequency catheter ablation. Eight foci were found in the PRA and 18 foci in the RPVs. Analysis of P wave configuration showed that lead V1 was the most helpful in distinguishing the AT foci between these two sites. In all cases, double potential (DP) configurations were recorded from several electrodes of a multielectrode catheter placed in the PRA, and the first DP component (FP) was the earliest potential recorded from the right atrium during the tachycardia. The amplitude of the FP was higher than that of the second DP component (SP) for AT foci originating in the PRA, whereas the reverse occurred for those in the RPV. The activation sequence of the FP was from superior to inferior for the AT foci in the superior RPV, whereas the reverse occurred for the AT foci in the inferior RPV. P wave configuration in lead V1 is help...Continue Reading

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Citations

Nov 1, 2008·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Zhihong ZhaoJihong Guo
Apr 2, 2011·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Vassil Borislavov TraykovLászló Sághy
Apr 14, 2010·Journal of Veterinary Internal Medicine·R A SantilliG Spadacini
Dec 18, 2009·Future Cardiology·Jean-Benoît le Polain de WarouxLaurent Macle
Jan 2, 2014·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Jae-Sun UhmBoyoung Joung
Aug 8, 2009·Pacing and Clinical Electrophysiology : PACE·Takumi YamadaG Neal Kay
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Takumi YamadaToyoaki Murohara

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