Focal atrial tachycardia mimicking catecholaminergic polymorphic ventricular tachycardia: a case report.

Background: In childhood and adolescence, cardiac arrhythmias are often benign in the absence of congenital heart defects. Nevertheless, life-threatening inherited arrhythmogenic syndromes can become clinically manifest in early childhood. As early symptoms may be similar in both conditions, thorough workup is fundamental to avoid delayed diagnosis and misdiagnosis.