Table 2 Intra- and post-operative results of the overall population and propensity matched patients
From: Minimally invasive or sternotomy approach in mitral valve surgery: a propensity-matched comparison
Overall | Matched Patients | |||||
|---|---|---|---|---|---|---|
MINI | STERNOTOMY | p-value | MINI | STERNOTOMY | p-value | |
Variable | n = 189 | n = 336 | n = 158 | n = 225 | ||
CPB time (minutes) | 141.2 ± 32.6 | 111.8 ± 33.8 | < 0.001 | 145.6 ± 31.9 | 110.7 ± 35.9 | < 0.001 |
Cross-clamp time (minutes) | 94.4 ± 25.4 | 85.0 ± 26.1 | < 0.001 | 97.7 ± 25.4 | 84.8 ± 28.0 | < 0.001 |
Operative time (minutes) | 227.6 ± 44.0 | 227.8 ± 62.3 | 0.39 | 232.0 ± 44.5 | 226.4 ± 66.0 | 0.01 |
Concomitant procedure | ||||||
Tricuspid annuloplasty | 73 (39%) | 186 (55%) | < 0.001 | 73 (46%) | 116 (52%) | 0.35 |
Cryoablation | 83 (44%) | 157 (47%) | 0.58 | 74 (47%) | 105 (47%) | 1.00 |
MI | 6 (3%) | 6 (2%) | 0.35 | 6 (4%) | 4 (2%) | 0.23 |
Renal replacement therapy | 4 (2%) | 21 (6%) | 0.03 | 4 (3%) | 6 (3%) | 1.00 |
Cerebrovascular stroke and TIA | 6 (3%) | 12 (4%) | 1.00 | 5 (3%) | 6 (3%) | 0.77 |
Stroke | 4 (2%) | 10 (3%) | 0.59 | 3 (2%) | 4 (2%) | 1.00 |
Delirium | 22 (12%) | 30 (9%) | 0.36 | 19 (12%) | 17 (8%) | 0.16 |
Pneumonia | 10 (5%) | 33 (10%) | 0.10 | 9 (6%) | 19 (8%) | 0.43 |
Re-exploration for bleeding | 8 (4%) | 35 (10%) | 0.01 | 5 (3%) | 20 (9%) | 0.03 |
Blood loss / 24 h (ml) | 668.8 ± 519.7 | 872.9 ± 865.6 | < 0.001 | 661.7 ± 466.8 | 832.9 ± 852.0 | 0.02 |
Transfusion | 106 (56%) | 259 (77%) | < 0.001 | 94 (59%) | 170 (76%) | 0.001 |
Number of Transfusions | 2.5 ± 4.3 | 5.3 ± 7.1 | < 0.001 | 2.7 ± 4.2 | 4.6 ± 6.3 | < 0.001 |
Atrial fibrillation | 74 (39%) | 142 (42%) | 0.52 | 63 (40%) | 89 (40%) | 1.00 |
Wound infection | 1 (1%) | 8 (2%) | 0.17 | 1 (1%) | 8 (4%) | 0.09 |
Low output syndrome | 9 (5%) | 40 (12%) | 0.007 | 8 (5%) | 21 (9%) | 0.17 |
Time to extubation (hour) | 12.5 ± 13.3 | 29.6 ± 88.9 | 0.001 | 13.0 ± 14.2 | 20.9 ± 63.2 | 0.26 |
Prolonged ventilation | 11 (6%) | 55 (16%) | < 0.001 | 9 (6%) | 30 (13%) | 0.02 |
ICU time (hour) | 49.2 ± 54.6 | 70.3 ± 129.1 | 0.01 | 50.5 ± 58.4 | 63.8 ± 122.1 | 0.21 |
Postoperative hospital stay (day) | 14.7 ± 10.4 | 15.4 ± 8.4 | 0.02 | 15.2 ± 11.1 | 15.1 ± 7.4 | 0.17 |
Postoperative IABP | 2 (1%) | 5 (1%) | 1.00 | 1 (1%) | 3 (1%) | 0.65 |
Postoperative mechanical support | 1 (1%) | 5 (1%) | 0.43 | 1 (1%) | 3 (1%) | 0.65 |
30-days mortality | 1 (1%) | 15 (4%) | 0.01 | 1 (1%) | 6 (3%) | 0.25 |