Table 2.
Intraoperative and postoperative characteristic according to the study groups after matching
| Overall patients after propensity score-matching | Patients after propensity score-matching | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Mitral valve | Aortic valve | ||||||||
| Variables | MIVS | FS | p value | Minimally invasive | FS | p value | Minimally invasive | FS | p value |
| n = 74 | n = 74 | n = 42 | n = 42 | n = 29 | n = 29 | ||||
| Aortic Cross-clamp time, min | 90.1 ± 20.4 | 76.5 ± 19.1 | 0.0001 | 85.2 ± 24.79 | 60.9 ± 20.97 | 0.0001 | 93.3 ± 19 | 77.03 ± 31 | 0.019 |
| CBP time, min | 120.55 ± 32 | 101.89 ± 35.5 | 0.001 | 119.6 ± 30.5 | 95.1 ± 20.4 | 0.0001 | 123.5 ± 55 | 109.8 ± 34 | 0.217 |
| Operative time, min | 306.42 ± 11 | 252.9 ± 89.3 | 0.001 | 295.3 ± 102.8 | 230.2 ± 118.9 | 0.0001 | 304.8 ± 94 | 249.1 ± 112 | 0.042 |
| ICU length of stay, days | 2.5 ± 1.9 | 4.8 ± 2.6 | 0.0001 | 2.83 ± 2.94 | 3.8 ± 2.97 | 0.143 | 2.79 ± 2.0 | 4.07 ± 2.2 | 0.029 |
| Hospital stays, days | 8.65 ± 2.6 | 12.6 ± 5.01 | 0.0001 | 8.5 ± 11.9 | 11.98 ± 3.51 | 0.0001 | 9.57 ± 2.4 | 16.17 ± 5.5 | 0.002 |
| Transfusion RBCs of patients | 13 (17.6) | 28 (37.8) | 0.006 | 11 (26.2) | 21 (50.0) | 0.025 | 5 (41.7) | 7 (58.3) | 0.517 |
| Prolonged mechanical ventilation time (> 24 h) | 7 (9.5) | 18 (24.3) | 0.016 | 3 (7.1) | 12 (28.6) | 0.010 | 4 (23.5) | 13 (76.5) | 0.009 |
Continuous variables are described by mean ± SD and by median, and categorical variables are shown as n (%)
CPB cardiopulmonary bypass time, ICU intensive care unit, RBC red blood cells