| Initial causes | Numbers | Percentage (%) |
| High blood pressure | 22 | 62.8 |
| Dilated cardiomyopathy | 8 | 22.8 |
| Pulmonary embolism | 4 | 11.5 |
| Post-partum cardiomyopathy | 1 | 2.9 |
| Total | 35 | 100 |