Exercise testing has become an important method for evaluation of pediatric patients with known or suspected arrhythmias. It has proven useful in patients with exercise-induced symptoms, patients with congenital heart disease, and patients with pacemakers. Exercise has predictable effects on the normal electrocardiogram. Exercise can also bring out abnormalities in cardiac rhythm that may not be present at rest. The results of exercise testing can provide information that directs further therapy or evaluation. Exercise testing also helps to evaluate the efficacy of antiarrhythmic therapy in some patients.
The authors are with the Lillie Frank Abercrombie Section of Cardiology, Dept. of Pediatrics, Baylor College of Medicine, and the Dept. of Pediatric Cardiology at Texas Children’s Hospital, 6621 Fannin, Houston, TX 77030.
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