Evaluation of child with an irregular heart rhythm

Echocardiogram performed if there is a suspicion for structural heart disease.

HR: heart rate; ECG: electrocardiogram; PACs: premature atrial contractions; WPW: Wolff-Parkinson-White; VPBs: ventricular premature beats; SND: sinus node dysfunction; AV: atrioventricular; NS VT: nonsustained ventricular tachycardia; SVT: supraventricular tachycardia; VT: ventricular tachycardia; EPS: electrophysiology study.

Courtesy of Andrew D Blaufox, MD.