ECG illustrations with interpretations are presented in several categories: normal children of all ages, acquired abnormalities such as hypertrophy or electrolyte disorders, and common congenital heart disease lesions. Later sections cover bradycardia, supraventricular and ventricular arrhythmias, and a basic section on pacemaker ECGs. Simple techniques used to interpret mechanisms of arrhythmias are described as a resource for practitioners in cardiology, adult electrophysiology, or pediatrics who may not have a readily accessible resource for these ECG examples.

The accompanying Website has been prepared with 3 purposes in mind:
1 as a self-evaluation tool for interpretation of ECGs
2 as a teaching reference for Cardiology fellows, residents, and house staff
3 as an invaluable resource for the Emergency Room physician or pediatrician who might obtain an ECG on a pediatric patient