Exercise stress testing can help pediatricians decide whether to put young athletes on medication to control accelerated ventricular rhythms (AVR), according to a study presented at the American Academy of Pediatrics meeting on Monday.
Zahra Naheed, MD, assistant professor of pediatrics at Rush Medical College and assistant attending of pediatrics at Cook County Children’s Hospital in Chicago, Illinois, presented research based on the cases of three adolescent boys who were referred to her hospital to be evaluated for irregular heartbeats.
In all three cases, a 12-lead electrocardiogram (ECG) found AVR of the right axis deviation and right bundle branch block morphology alternating with sinus rhythm.
In one case, an 11-year-old boy underwent electrophysiologic testing that showed complete suppression of AVR with an infusion of isoproterenol. He was treated with verapamil for less than two years and then weaned off. After that “he had no events and his [ECG] looked good,” Dr. Naheed said.
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