Idiopathic mitral annular pvcs with multiple breakouts and preferential conduction unmasked by radiofrequency catheter ablation

Takumi Yamada; Harish Doppalapudi; H. Thomas McElderry; G. Neal Kay

doi:10.1111/j.1540-8159.2010.02981.x

Idiopathic mitral annular pvcs with multiple breakouts and preferential conduction unmasked by radiofrequency catheter ablation

Takumi Yamada, Harish Doppalapudi, H. Thomas McElderry, G. Neal Kay

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A 39-year-old man with idiopathic monomorphic premature ventricular contractions (PVCs), exhibiting a right bundle branch block and inferior axis QRS morphology, underwent electrophysiological testing. After a radiofrequency (RF) application to the anterior mitral annulus (MA) eliminated the spontaneous PVC morphology, a second PVC morphology occurred. Pacing from the first ablation site exhibited an excellent match to the second PVCs with a long stimulus to QRS interval. An RF application delivered near the first lesion eliminated all PVCs. The MA PVCs in this case exhibited a single origin with multiple breakouts and preferential conduction that were unmasked by RF ablation. (PACE 2012; 35:e112-e115)

Original language	English (US)
Pages (from-to)	e112-e115
Journal	PACE - Pacing and Clinical Electrophysiology
Volume	35
Issue number	5
DOIs	https://doi.org/10.1111/j.1540-8159.2010.02981.x
State	Published - May 2012
Externally published	Yes

Keywords

mitral annulus
multiple breakouts
preferential conduction
premature ventricular contraction
radiofrequency catheter ablation

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10.1111/j.1540-8159.2010.02981.x

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abstract = "A 39-year-old man with idiopathic monomorphic premature ventricular contractions (PVCs), exhibiting a right bundle branch block and inferior axis QRS morphology, underwent electrophysiological testing. After a radiofrequency (RF) application to the anterior mitral annulus (MA) eliminated the spontaneous PVC morphology, a second PVC morphology occurred. Pacing from the first ablation site exhibited an excellent match to the second PVCs with a long stimulus to QRS interval. An RF application delivered near the first lesion eliminated all PVCs. The MA PVCs in this case exhibited a single origin with multiple breakouts and preferential conduction that were unmasked by RF ablation. (PACE 2012; 35:e112-e115)",

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T1 - Idiopathic mitral annular pvcs with multiple breakouts and preferential conduction unmasked by radiofrequency catheter ablation

AU - Yamada, Takumi

AU - Doppalapudi, Harish

AU - McElderry, H. Thomas

AU - Kay, G. Neal

PY - 2012/5

Y1 - 2012/5

N2 - A 39-year-old man with idiopathic monomorphic premature ventricular contractions (PVCs), exhibiting a right bundle branch block and inferior axis QRS morphology, underwent electrophysiological testing. After a radiofrequency (RF) application to the anterior mitral annulus (MA) eliminated the spontaneous PVC morphology, a second PVC morphology occurred. Pacing from the first ablation site exhibited an excellent match to the second PVCs with a long stimulus to QRS interval. An RF application delivered near the first lesion eliminated all PVCs. The MA PVCs in this case exhibited a single origin with multiple breakouts and preferential conduction that were unmasked by RF ablation. (PACE 2012; 35:e112-e115)

AB - A 39-year-old man with idiopathic monomorphic premature ventricular contractions (PVCs), exhibiting a right bundle branch block and inferior axis QRS morphology, underwent electrophysiological testing. After a radiofrequency (RF) application to the anterior mitral annulus (MA) eliminated the spontaneous PVC morphology, a second PVC morphology occurred. Pacing from the first ablation site exhibited an excellent match to the second PVCs with a long stimulus to QRS interval. An RF application delivered near the first lesion eliminated all PVCs. The MA PVCs in this case exhibited a single origin with multiple breakouts and preferential conduction that were unmasked by RF ablation. (PACE 2012; 35:e112-e115)

KW - mitral annulus

KW - multiple breakouts

KW - preferential conduction

KW - premature ventricular contraction

KW - radiofrequency catheter ablation

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Idiopathic mitral annular pvcs with multiple breakouts and preferential conduction unmasked by radiofrequency catheter ablation

Abstract

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