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

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

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)e112-e114
JournalPACE - Pacing and Clinical Electrophysiology
Volume34
Issue number12
DOIs
StatePublished - Dec 2011
Externally publishedYes

Keywords

  • Great cardiac vein
  • Intramural origin
  • Pace mapping
  • Premature ventricular contraction
  • Radiofrequency catheter ablation

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