Evidence for an intramural origin of idiopathic premature ventricular contractions successfully ablated within the great cardiac vein

Pacing and Clinical Electrophysiology : PACE
Takumi YamadaG Neal Kay

Abstract

A 37-year-old woman with idiopathic premature ventricular contractions (PVCs), exhibiting a right bundle branch block and inferior axis QRS morphology, underwent electrophysiological testing. The earliest ventricular activation with an isolated prepotential was observed within the great cardiac vein during the PVCs. Pacing from this site with an output of 10 mA produced an excellent pace map, whereas that with an output of 2 mA produced a wider QRS with notches in the early phase. A radiofrequency application delivered at this site eliminated the PVCs. These findings suggested that the PVC origin might have been intramural rather than epicardial.

References

Nov 7, 2006·Journal of the American College of Cardiology·Owen A ObelVivek Y Reddy
Nov 27, 2007·Circulation Journal : Official Journal of the Japanese Circulation Society·Kenichi KasenoKoichi Taniguchi
Feb 13, 2008·Journal of Cardiovascular Electrophysiology·Koji KumagaiHiroaki Shimokawa
Jan 6, 2009·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Harish DoppalapudiG Neal Kay
Oct 8, 2009·Circulation. Arrhythmia and Electrophysiology·Takumi YamadaG Neal Kay

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Citations

Mar 19, 2013·Journal of Cardiovascular Electrophysiology·Suraj Kapa, Mathew D Hutchinson
Sep 11, 2013·Journal of Cardiovascular Electrophysiology·Mathew D Hutchinson, Fermin C Garcia
Aug 19, 2015·Nature Reviews. Cardiology·Bruce B Lerman

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