Supraventricular tachycardia (SVT) is one of the most common arrhythmias in pediatric patients, affecting approximately 1 in 250 to 1 in 1,000 children. SVT can strike unexpectedly, causing a child's ...

Supraventricular tachycardias constitute all tachycardias that arise from above, or involving, the bundle of His. This includes arrhythmias that originate from the sinus node, the atrial tissue ...