ABSTRACT
Patients with arrhythmias such as AVNRT or AVRT which can be easily ablated (95% + success rates) are, in our institution, routinely offered a radiofrequency catheter ablation if they have failed one trial of antiarrhythmic drug therapy. In contrast, patients with arrhythmias such as atrial tachycardia or atrial flutter where acute success rates of catheter ablation are approximately 80% or less are frequently offered a variety of antiarrhythmic agents before a decision is taken to proceed to radiofrequency ablation.
