| pre CPB | post CPB | ||
| Transoesophageal echocardiography | |||
| Shortening fraction (%) | 40 ± 7 | 46 ± 5 | ns |
| Ejection fraction (%) | 65 ± 7 | 74 ± 6 | * |
| Circumferential fiber shortening velocity (circ/s) | 0.89 ± 0.14 | 1.47 ± 0.27 | * |
| Enddiastolic volume (ml) | 80 ± 14 | 75 ± 17 | ns |
| Pulse contour analysis | |||
| Area under the curve (mmHg*s) | 435 ± 54 | 263 ± 27 | * |
| Initial tangent (mmHg/s) | 813 ± 216 | 1490 ± 450 | * |
| Pulse pressure variation (%) | 4.7 ± 2.1 | 5.8 ± 3.1 | ns |
| Basic measures | |||
| Mean arterial pressure (mmHg) | 86 ± 7 | 73 ± 6 | ns |
| Central venous pressure (mmHg) | 11 ± 3 | 7 ± 2 | * |
| Heart rate (min−1) | 49 ± 9 | 90 ± 8 | * |
| Vasopressor and inotropic therapy | |||
| Norepinephrine (mg/h) | 0.3 ± 0.1 | 0.5 ± 0.1 | * |
| Epinephrine (mg/h) | 0.0 ± 0.0 | 0.1 ± 0.1 | * |
| Milrinone (mg/h) | 0.0 ± 0.0 | 0.4 ± 0.2 | * |