Ventricular tachycardia with a myocardial fibre travelling from the origin in the right aortic sinus cusp to the epicardial breakout site of the right ventricular outflow tract

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

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

A 74-year-old man with idiopathic ventricular tachycardia (VT) with a QRS morphology with a left bundle branch block and right inferior axis underwent electrophysiologic testing. Successful ablation was achieved at the right coronary cusp (RCC) where an excellent pace map with long stimulus-to-QRS interval (St-QRS) (85 ms) was obtained. An excellent pace map was also obtained on the epicardial surface ∼1 cm away from the successful ablation site and the St-QRS was shorter (40 ms). These findings suggested that a myocardial fibre travelling from the origin in the RCC to the epicardium of the right ventricular outflow tract might exist.

Original languageEnglish (US)
Pages (from-to)469-470
Number of pages2
JournalEuropace
Volume10
Issue number4
DOIs
StatePublished - Apr 2008
Externally publishedYes

Keywords

  • Aortic sinus cusp
  • Electrophysiology
  • Epicardial
  • Myocardial fibre
  • Ventricular tachycardia

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