RADIOFREQUENCY CATHETER ABLATION OF MULTIPLE HEMODYNAMICALLY UNSTABLEVENTRICULAR TACHYCARDIAS IN A PATIENT WITH SURGICALLY REPAIRED TETRALOGY OF FALLOT

A patient with repaired tetralogy of Fallot presented with:recurrent s yncope and had multiple haemodynamically; unstable ventricular tachyca rdias unresponsive to antiarrhythmic medications Ventricular tachycard ias became haemodynamically tolerated with amiodarone, procainamide an d dopamine, permitting activation and entrainment mapping. Radiofreque ncy ablation of three tachycardia circuits was performed. Ventricular tachycardia could ndt be induced 1 week; and 3 and 9 months later. Rad iofrequency ablation is feasible for multiple, haemodynamically unstab le ventricular tachycardias in repaired tetralogy of Fallot.