Operative and postoperative data
| Values | |
| Type of mitral valve surgery | |
| Mitral valve repair | 11 (44) |
| Mitral valve replacement | 14 (56) |
| Cardiopulmonary bypass time, min (SD) | 105 (41) |
| Ventilation time, hours, median (IQR) | 11 (14) |
| Intensive care unit stay, days (SD), median (IQR) | 2.0 (3.8) |
| Length of stay, median (IQR) | 10 (9) |
| Drain output in the first 4 hour, mL (SD) | 494 (488) |
| Conversion to median sternotomy, n (%) | 0 (0) |