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Figure 5 A, Reentrant tachycardia could be induced by atrial or ventricular extrastimulation in a 5-year-old girl with RAI. The intracardiac electrocardiogram during the electrophysiological study. The local electrogram at successful ablation site revealed earliest retrograde atrial activity. B, Transient junctional ectopic tachycardia developed during the successful ablation.
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