RADIOFREQUENCY CATHETER ABLATION AS A PRIMARY THERAPY FOR TREATMENT OF VENTRICULAR-TACHYCARDIA IN A PATIENT AFTER REPAIR OF TETRALOGY OF FALLOT

A 20-year-old man with previous surgical repair of tetralogy of Fallot was admitted with hemodynamically significant ventricular tachycardia that was terminated with cardioversion. He was found at electrophysio logical study to have easily inducible ventricular tachycardia that wa s mapped to the right ventricular outflow tract. Radiofrequency cathet er ablation of the ventricular tachycardia focus rendered the patient' s arrhythmia noninducible. This case represents a successful radiofreq uency catheter ablation of a ventricular tachycardia focus associated with tetralogy of Fallot repair.