| Etiology | Effectives | Percentage (%) |
| Dilated cardiomyopathy | 35 | 46.6 |
| Ischemic heart disease | 15 | 20 |
| Chronic renal failure | 6 | 8 |
| Hypertrophic cardiomyopathy | 2 | 2.6 |
| Diabetes | 2 | 2.6 |
| Others | 10 | 13.3 |
| Total | 75 | 100 |