Junctional ectopic tachycardia (JET) is an unusual arrhythmia in children. It is usually described as a congenital tachycardia or as occurring in the postoperative setting. Here we report the case of an 8-year-old girl who presented with JET in the context of viral myocarditis and its later subsidence which could have been in response to Carvedilol therapy.
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