Successful catheter ablation in a patient with polymorphic ventricular tachycardia

Kengo Fukushima Kusano, Mika Yamamoto, Tetsuro Emori, Hiroshi Morita, Tohru Ohe

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30 Citations (Scopus)


We describe a patient with polymorphic ventricular tachycardia (PVT)/ventricular fibrillation (VF) without organic heart disease who was cured by radiofrequency catheter ablation. The patient was a 65-year-old woman with a 10-year history of recurrent syncope. There was no evidence of organic heart disease, and the QT interval during sinus rhythm was borderline normal (corrected QT interval = 0.45 sec(1/2)). ECG recording during syncope showed PVT. On one occasion, PVT degenerated into VF. This PVT was always induced by a premature ventricular complex (PVC) originating from the right ventricular (RV) outflow tract. Rapid pacing (220 beats/min) at the site of PVC origin reproduced polymorphic change of the QRS wave on surface ECG that was similar to PVT. This suggests that the PVT originated from a single focus in the RV outflow tract. Catheter ablation was performed at the site of PVC origin. During 18-month follow-up, PVT/VF was not documented.

Original languageEnglish
Pages (from-to)682-685
Number of pages4
JournalJournal of Cardiovascular Electrophysiology
Issue number6
Publication statusPublished - Jan 1 2000


  • Catheter ablation
  • Polymorphic ventricular tachycardia
  • Ventricular fibrillation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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