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 journalArticlepeer-review

10 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 languageEnglish (US)
Pages (from-to)e112-e115
JournalPACE - Pacing and Clinical Electrophysiology
Volume35
Issue number5
DOIs
StatePublished - May 2012
Externally publishedYes

Keywords

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

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