Table 3.
Intraoperative data
| Control group (n = 35) | Bicarbonate group (n = 35) | P value | |
|---|---|---|---|
| Operation time (minutes) | 227.9 ± 67.0 | 211.8 ± 94.5 | 0.412 |
| Anesthesia time (minutes) | 270.7 ± 78.0 | 265.5 ± 105.6 | 0.815 |
| Cardiopulmonary bypass time (minutes) | 118.7 ± 51.8 | 109.6 ± 75.1 | 0.554 |
| Aortic cross-clamp time (minutes) | 87.3 ± 43.3 | 77.6 ± 56.5 | 0.424 |
| Fluid balance | |||
| Crystalloid (ml) | 1000 (775, 1200) | 1000 (600, 1375) | 0.995 |
| Colloid (ml) | 130 (100, 300) | 100 (100, 200) | 0.288 |
| Urine output (ml) | 870 (560, 1240) | 1000 (600, 1250) | 0.526 |
| Ultrafiltration during CPB (ml)/ n a | 2000 (1250, 2400)/25 | 1550 (1300, 2100)/26 | 0.216/0.788 |
| Transfusion | |||
| Amount of cell saver (ml) | 500.0 (477.5, 740.0) | 500.0 (480.0, 730.0) | 0.652 |
| Amount of erythrocyte (unit) | 1 (0, 2) | 1 (0, 2) | 0.916 |
| Patients transfused with erythrocyte | 21 | 21 | >0.999 |
| Patients transfused with FFP | 18 | 17 | 0.811 |
| Patients transfused with PLT | 12 | 4 | 0.023 |
| Vasopressor/ Inotrope needs | |||
| Norepinephrine dose (μg/kg/min) | 0.03 (0.01, 0.04) | 0.02 (0.01, 0.05) | 0.317 |
| Patients needed vasopressin | 16 | 14 | 0.629 |
| Patients needed milrinone | 4 | 4 | >0.999 |
Values are mean ± standard deviation, median (interquartile range), or number of patients. aNumber of patients receiving ultrafiltration during cardiopulmonary bypass (CPB). FFP fresh frozen plasma, PLT platelet