A 28-year-old man with recurrent episodes of supraventricular tachycardia (SVT) presents to the cardiology clinic for evaluation. He has had 4 episodes in the past 6 months, each lasting 10–30 minutes and causing significant symptoms. Electrophysiological studies confirm atrioventricular nodal reentrant tachycardia (AVNRT). He is currently on no medications. What is the most appropriate next step in management?

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