A case of neonatal catecholaminergic ventricular tachycardia is reported. E
pisodes of fetal tachycardia were detected in a female baby and just after
birth, sustained monomorphic ventricular tachycardia of complete left bundl
e branch block pattern and inferior axis were recorded, suggesting a right
ventricular outflow origin. Routine examination did not reveal overt heart
disease. Ventricular tachycardia was induced by crying or sucking, elicited
by isoproterenol infusion, and was suppressed by intravenous injection of
ATP or propranolol. The baby's arrhythmia was controlled with oral proprano
lol. The ventricular tachycardia seemed to be caused by triggered activity.