| Characteristics | Number | Percentage |
| Age at surgery | ||
| 11 - 19 years | 14 | 70.00% |
| ≥30 years | 06 | 30.00% |
| Type of cardiopathy | ||
| Mitral deficiency | 10 | 50.00% |
| Mitral closure | 08 | 40.00% |
| Myxoma | 02 | 10.00% |
| Type of heart valve disease | ||
| Monovalvular | 14 | 70.00% |
| Polyvalvular | 06 | 30.00% |
| Type of surgery | ||
| Mitral prosthesis | 16 | 80.00% |
| Aortic prosthesis | 04 | 20.00% |
| AVK before pregnancy | ||
| Yes | 13 | 65.00% |
| No | 07 | 35.00% |