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Electrophysiologic study and catheter ablation of a supraventricular tachycardia in a patient with inferior vena cava congenital anomaly.

Electrophysiologic procedures are performed widely nowdays, for the successful treatment of several cardiac arrhythmias. In this case report, we describe a rare congenital anomaly of the inferior vena cava, as an incidental finding during a scheduled electrophysiologic procedure for a supraventricular tachycardia ablation. The patient is a 32 year old male with an unremarkable medical history, suffering from sustained episodes of paroxysmal tachycardia. The electrophysiological maneuvers confirmed the presence of atrioventricular nodal reentry tachycardia, followed by a successful slow pathway ablation. We provide imaging details and guidance on the successful catheter positioning. In cases like this, the prognosis is excellent, while the follow up of our patient was unremarkable.