Abstract
Atrial tachycardia tends to originate at the crista terminalis, coronary sinus ostium, bundle of His, cavotricuspid isthmus, and pulmonary vein ostium, and rarely in the right atrial appendage (RAA).1,21,2 A 35-year-old man visited his local physician with complaints of frequent palpitations during the day. The electrocardiogram showed supraventricular tachycardia with heart rate of 225 bpm. Electrophysiological (EP) testing was performed in our hospital. An electroanatomic mapping system (EnSite Precision Cardiac Mapping System, Abbott, Abbott Park, IL) was used during the procedure.
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