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Figure 2 Classification of SVT in Stable OHT Patients

Incidence of the different types of drug refractory supraventricular tachycardia (SVT) in this cohort of orthotopic heart transplant (OHT) patients who underwent electrophysiological study (EPS) is shown. Note that isthmus-dependent atrial flutter was the most commonly observed SVT, followed by scar-related macro-reentrant tachycardia. AT = atrial tachycardia; AVNRT = atrioventricular nodal reentrant tachycardia; AVRT = atrioventricular reentrant tachycardia.