Ablation Therapy of Supraventricular Tachycardia in Elderly Persons

Leonard S. Dreifus, MD; Scott J. Pollak, MD


Am J Geriatr Cardiol. 2005;14(1):20-25. 

In This Article

Atrial Tachycardia

Atrial tachycardias originating in either the right or left atrium are not randomly distributed but have specific electrophysiologic and anatomical characteristics.[2,3,4] Recent electrophysiologic studies have identified focal atrial tachycardias arising from the mitral annulus, left atrial septum, and Bachmann's bundle. These arrhythmias can also arise along the long axis of the crista terminalis, in the para-Hisian region, and around the OS of the coronary sinus[2,3,4] and mitral annulus.[5] Atrial tachycardias usually have a rate between 130 bpm and 200 bpm. These mechanisms can be paroxysmal or sustained. Brief or nonsustained SVTs are frequently observed on a Holter monitor or loop recorder and may be simply perceived as palpitations by the patient. Usually these nonsustained mechanisms do not require therapy. Rarely, pharmacologic therapy may be necessary simply to allay a patient's anxiety.