Sustained ventricular tachycardia associated with influenza syndrome in a young girl--a case report.

Ventricular arrhythmias in children with no demonstrable heart disease are rare. In a thirteen-year-old girl, a typical influenza syndrome was complicated by sustained ventricular tachycardia. Exercise tests, echocardiography, electrophysiological studies, and endomyocardial biopsy were negative. Viremia, fever, or medications may be responsible for this unusual complication.