Premature ventricular contractions arising from the pulmonary artery: the use of multielectrode array mapping and cryoablation

Journal of Cardiovascular Electrophysiology
Nesan ShanmugamD E Ward

Abstract

Premature ventricular contractions with a left bundle branch block-like morphology and inferior axis typically originate from the right ventricular outflow tract; however, they can also originate from the pulmonary artery. We report two patients with frequent premature ventricular contractions who underwent successful cryoablation of ectopics arising from the posterolateral region of the pulmonary artery. The safe and effective use of cryoablation within the pulmonary artery is discussed. We recommend the use of noncontact mapping with multielectrode array catheter in facilitating the technique and providing a more accurate localization of the ectopic focus within the pulmonary artery, compared with conventional pace mapping methods.

References

Jul 11, 2002·Journal of Cardiovascular Electrophysiology·Hitoshi HachiyaYoshito Iesaka
Jul 24, 2003·Journal of Cardiovascular Electrophysiology·Michael RibbingLars Eckardt
Mar 16, 2005·Journal of the American College of Cardiology·Yukio SekiguchiMitsuaki Isobe
Apr 15, 2005·Journal of Cardiovascular Electrophysiology·Klaus KurzidimHeinz Friedrich Pitschner
Sep 30, 2005·Journal of Cardiovascular Electrophysiology·Yasuteru YamauchiMitsuaki Isobe
Sep 30, 2005·Journal of Cardiovascular Electrophysiology·Yukio SekiguchiMitsuaki Isobe
Jul 14, 2006·Journal of Cardiovascular Electrophysiology·Jing ZhouSunny S Po
Jun 30, 2007·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Wayne WhitwamSanjiv M Narayan

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Citations

May 10, 2015·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·Fengxiang ZhangMinglong Chen

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