| Structural Causes (Non-Cardiomyopathy) |
| Congenital aortic stenosis |
| Anomalies of the coronary arteries |
| Valvular disease (excluding aortic valve disease) |
| Cardiomyopathy |
| Dilated Cardiomyopathy |
| Hypertrophic Cardiomyopathy |
| Electrical |
| Long QT syndrome |
| Wolf-Parkinson White syndrome |
| Other |
| Myocarditis |
| Drugs |
| Primary pulmonary hypertension |
