|
Octogenarians (n=20) |
Septuagenarians (n=81) |
P-value | |
|---|---|---|---|
| Operative variables | |||
| Valve replacement | 50.0% (10) | 49.4% (40) | 1.000 |
| Mechanical valve | 80% (8/10) | 60.0% (24/40) | 0.075 |
| Valve repair | 50.0% (10) | 50.6% (41) | 1.000 |
| Operation time (minutes) | 178 (152-248) | 218 (170-242) | 0.392 |
| Cardiopulmonary bypass time (minutes) | 98 (84-145) | 118 (100-146) | 0.248 |
| Cross-clamp time (minutes) | 73 (57-107) | 88 (73-109) | 0.126 |
| In-hospital outcomes | |||
| Operative mortality | 0.0% (0) | 7.4% (6) | 0.596 |
| Composite morbidity | 30.0% (6) | 27.2% (22) | 0.786 |
| Stroke | 0.0% (0) | 2.5% (2) | 1.000 |
| Renal failure | 0.0% (0) | 2.5% (2) | 1.000 |
| Ventilation>24 hours | 20.0% (4) | 19.8% (16) | 1.000 |
| Mediastinitis | 5.0% (1) | 1.2% (1) | 0.358 |
| Return to theatre | 10.0% (2) | 9.9% (8) | 1.000 |
| Operation to discharge time (days) | 8.7 (8.0-12.2) | 8.0 (6.1-10.2) | 0.189 |