Key result
Exercise stress testing in a 5-year-old boy with recurrent syncope successfully elicited atrial fibrillation with rapid ventricular response as the underlying cause.
Case Report (n=1)
Exercise stress testing can be a useful diagnostic tool in preschool children to elicit unusual arrhythmic causes of exercise-induced syncope.
May support exercise testing to uncover rare arrhythmic syncope triggers in preschoolers; leaves open need for validation before wider adoption.
A 5-year-old boy with an unremarkable past medical and family history presented with recurrent syncope precipitated by physical activity. Electrocardiogram performed in the emergency room after one of his episodes revealed atrial flutter. He had a structurally normal heart. Exercise stress test revealed atrial fibrillation with rapid ventricular response immediately on commencement of running. Atrial fibrillation subsequently organized into atrial flutter with variable ventricular response followed by spontaneous conversion to sinus rhythm. This case highlights the use of exercise stress test in a preschool child to elicit an unusual cause of syncope.
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Harinder R. Singh (2009) conducted a case report in Recurrent syncope (n=1). Exercise stress test was evaluated on Eliciting the cause of syncope. Exercise stress testing in a 5-year-old boy with recurrent syncope successfully elicited atrial fibrillation with rapid ventricular response as the underlying cause.
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