Journal of Cardiovascular Electrophysiology · 2002 · 55 citations · 0 references
MedicineCardiologySurgeryCardiothoracic SurgeryClinical CardiologyInterventional CardiologyCardiac ArrhythmiasCardiac CatheterizationCatheter AblationElectrocardiographyVentricular TachycardiaArrhythmia InductionArrhythmia RecurrenceCatheter Ablation MappingIdiopathic Ventricular TachycardiaVentricular Tachycardia AblationVentricular Tachycardia InducibilityVentricular Tachycardia MappingVentricular Tachycardia Recurrence
We report the case of a patient in whom successful radiofrequency catheter ablation of an idiopathic ventricular tachycardia (VT) originating in the main stem of the pulmonary artery was performed. After successful ablation of the index arrhythmia, which was an idiopathic right ventricular outflow tract VT, a second VT with a different QRS morphology was reproducibly induced. Mapping of the second VT revealed the presence of myocardium approximately 2 cm above the pulmonary valve. Application of radiofrequency energy at this site resulted in termination and noninducibility of this VT. After 6-month follow-up, the patient remained free from VT recurrences.