Electrophysiology/Catheter Ablation: Electrophysiologic tests are ordered by your physician to find out why your heart is not beating in a regular way. A radiofrequency ablation is a non-surgical procedure that is used to treat some types of rapid heart beating, such as atrial fibrillation, atrial flutter and atrial tachycardia. It is most often used to treat supraventricular tachyarrhythmias. Transcatheter ablative therapy utilizes a technique of an electrode catheter being inserted through a blood vessel to perform targeted electrocautery in the heart. This therapy is rapidly becoming the treatment of choice for many supraventricular tachycardias.