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Figure 1 Anatomic Diagnoses of Pediatric and Congenital Implantable Cardioverter-Defibrillator Recipients

Congenital heart disease (CHD) accounts for 46% of total, cardiomyopathies (CM) 23%, and structurally normal hearts (NL) with primary electrical diseases accounting for 31% of all patients. Among CHD patients, diagnoses included tetralogy of Fallot (TOF), transposition of great arteries (TGA), atrial and/or ventricular septal defects, valve abnormalities, single ventricle, Shone's complex, coronary artery congenital anomalies, Ebstein anomaly of tricuspid valve, and others. Cardiomyopathies included hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVC), left ventricular noncompaction (LVNC), and restrictive cardiomyopathy (RCM).