Table 6.
Postoperative procedural-related complications.
| Propensity Matched Cohort (N = 480) |
|||
|---|---|---|---|
| MICS-MITRAL (n = 160) |
Sternotomy (n = 320) |
p-Value | |
| Ventilation time (hours), mean ± SD | 6.4 ± 6.4 | 15.8 ± 2.4 | 0.02 * |
| Respiratory failure †, n (%) | 3 (1.9) | 9 (2.4) | 0.52 |
| ICU stay (hours), mean ± SD | 58.8 ± 44.5 | 78.8 ± 5.8 | 0.05 * |
| Hospital stay, mean ± SD | 11.7 ± 5.2 | 12.5 ± 6.7 | 0.16 |
| Intraop. transfusion (PRBC), mean ± SD | 0.1 ± 0.5 | 0.5 ± 1.1 | ≤0.001 ** |
| Postop. transfusion (PRBC), mean ± SD | 0.3 ± 1.3 | 1.3 ± 5.0 | 0.01 * |
| CVVHD, n (%) | 1 (0.6) | 19 (5.9) | ≤0.001 ** |
| Conversion to full sternotomy, n (%) | 0 (0.0) | 0 (0.0) | ≥0.99 |
| Re-exploration for bleeding, n (%) | 6 (3.8) | 18 (5.6) | 0.04 * |
| Impaired wound healing, n (%) | 4 (2.5) | 16 (5.0) | 0.2 |
| Delirium, n (%) | 24 (15.0) | 50 (15.6) | 0.89 |
| Stroke, n (%) | 1 (0.6) | 7 (2.2) | 0.47 |
| TIA, n (%) | 1 (0.6) | 3 (0.9) | 0.17 |
| Permanent pacemaker implantation, n (%) | 8 (5.0) | 7 (2.2) | 0.10 |
| New Onset AF, n (%) | 33 (20.6) | 60 (18.9) | 0.71 |
| Prolonged inotropic support > 24 h (any dose), n (%) | 27 (16.9) | 86 (26.9) | 0.02 * |
| RCX occlusion, n (%) | 0 (0.0) | 1 (0.3) | ≥0.99 |
| In-hospital mortality n (%) | 0 (0.0) | 11 (3.4) | 0.02 * |
Note: Bold values indicate statistical significance: *, p ≤ 0.05; **, p ≤ 0.01; †, defined as primary postoperative ventilation time ≥ 72 h, re-intubation and/or tracheotomy; Abbreviations: AF, Atrial fibrillation; MICS-MITRAL, minimally invasive mitral valve surgery; ICU, intensive care unit; CVVHD, consecutive renal failure needing continuous veno-venous hemofiltration; TIA, transient ischemic attack; RCX, circumflex artery.