Table 1 Patient characteristics intra and postoperative results
Levitation Group (n = 20) | Vortex Group (n = 20) | P-value | |
|---|---|---|---|
Preoperative | |||
Age (years) (mean ± SD) | 71.0 (63.7) | 69 (58.7) | 0.89 |
Body surface area (m2) | 1.83 | 1.82 | 0.94 |
EuroSCORE II | 1.5 | 1.7 | 0.88 |
Pre-CPB hematocrit (%) (mean ± SEM) | 34.6 ± 1.3 | 34.8 ± 2.1 | 0.99 |
Hb (g/dL) | 12.3 ± 1.1 | 12.3 ± 1.2 | 1 |
Serum creatinine (g/dL) | 0.83 ± 0.5 | 0.85 ± 0.7 | 0.96 |
PFH (mg/L) | 0.02 | 0.01 | 1 |
Intraoperative | |||
CPB time (min) | 72 ± 15.2 | 71 ± 7.36 | 1 |
Aortic cross-clamp time (min) | 52 ± 9 | 51 ± 7 | 0.93 |
DOi2 (mL/min/m2) | 339 ± 20 | 338 ± 17 | 0.99 |
CI (L/min/m2) | 2.4 ± 0.2 | 2.4 ± 0.1 | 0.99 |
Pump speed (rpm) | 2800 ± 140 | 2880 ± 160 | 0.98 |
Pump inlet pressure (mmHg) | 56 ± 10 | 58 ± 9 | 0.88 |
CVP (mmHg) | 5 ± 3 | 6 ± 2 | 0.89 |
Hct (%) | 34 ± 2 | 32 ± 1 | 0.69 |
Hb (g/dL) | 11.5 ± 0.5 | 11.3 ± 0.6 | 0.76 |
Oxygenator pressure drop (mmHg) | 45 ± 4 | 41 ± 2 | 0.79 |
Arterial pressure cannula (mmHg) | 105 ± 9 | 104 ± 7 | 0.89 |
MAP (mmHg) | 65 ± 7 | 63 ± 4 | 0.91 |
Postoperative | |||
PFH at 10 min after CPB (mg/L) | 10.6 ± 0.7 | 19.9 ± 0.3 | 0.034 |
LDH at 24 h after CPB (IU/L) | 99.16 ± 1.7 | 139.17 ± 1.5 | 0.027 |
Creatinine peak after CPB (mg/dL) | 0.92 | 1.29 | 0.030 |
RBC (units) | 3 (0.15/patient) | 9 (0.45/patient) | 0.017 |
Indirect bilirubin after CPB (mg/dL) | 0.6 ± 0.4 | 1.5 ± 0.9 | 0.022 |