Table 2 Postoperative and surgical characteristics
|  | Unmatched Cohort (n = 237) | Matched Cohort (n = 135)b | ||||
|---|---|---|---|---|---|---|
|  | Intervention (n = 54) | Control (n = 183) | p valuea | Intervention (n = 46) | Control (n = 89) | p valuea |
General characteristics of the surgery | ||||||
 Technique |  |  | 0.586 |  |  | 0.978 |
 Piggy-back | 53 / 54 (98.1) | 177 / 183 (96.7) |  | 45 / 46 (97.8) | 87 / 89 (97.8) |  |
 Conventional | 1 / 54 (1.9) | 6 / 183 (3.3) |  | 1 / 46 (2.2) | 2 / 89 (2.2) |  |
 Clamping time, minutes | 38.1 ± 10.3 | 64.8 ± 90.0 | 0.032 | 38.3 ± 10.6 | 52.4 ± 17.9 | < 0.001 |
 Ischemia time, minutes | 418.3 ± 69.2 | 569.9 ± 165.8 | < 0.001 | 421.0 ± 71.8 | 584.4 ± 161.3 | < 0.001 |
Use of fluids, urine output and cell-saver | ||||||
 Total fluid infusion, mL | 3846.3 ± 1124.01 | 4986.7 ± 1811.3 | < 0.001 | 3743.5 ± 956.7 | 4946.9 ± 1734.6 | < 0.001 |
 Lactated ringer, mL | 0.0 ± 0.0 | 710.1 ± 1524.2 | 0.001 | 0.0 ± 0.0 | 398.9 ± 991.9 | 0.007 |
 Normal saline, mL | 0.0 ± 0.0 | 118.8 ± 510.7 | 0.089 | 0.0 ± 0.0 | 134.8 ± 542.3 | 0.095 |
 Plasma-Lyte®, mL | 3570.4 ± 1055.7 | 3733.1 ± 2171.5 | 0.595 | 3484.8 ± 925.9 | 4000.0 ± 2012.7 | 0.102 |
 Albumin, mL | 275.9 ± 134.9 | 424.7 ± 317.5 | 0.001 | 258.7 ± 118.1 | 413.2 ± 173.5 | < 0.001 |
 Cell-saver, mL | 522.4 ± 713.6 | 568.0 ± 968.0 | 0.748 | 585.0 ± 734.8 | 653.6 ± 1066.8 | 0.697 |
 Urine output, mL | 611.3 ± 510.1 | 722.1 ± 431.4 | 0.117 | 644.4 ± 529.7 | 722.1 ± 441.8 | 0.372 |
 Fluid balance, mL | 3248.1 ± 1212.0 | 4254.3 ± 1737.6 | < 0.001 | 3112.2 ± 1021.5 | 4237.2 ± 1689.9 | < 0.001 |
Vital signs and vasopressors | ||||||
Induction | ||||||
 Heart rate, bpm | 75.3 ± 13.9 | 78.9 ± 14.9 | 0.117 | 76.1 ± 13.1 | 79.6 ± 15.1 | 0.188 |
 Systolic pressure, mmHg | 118.7 ± 26.9 | 117.8 ± 20.9 | 0.808 | 120.2 ± 26.8 | 118.5 ± 19.0 | 0.674 |
 Diastolic pressure, mmHg | 62.5 ± 14.5 | 61.3 ± 13.1 | 0.546 | 63.8 ± 14.3 | 61.0 ± 13.4 | 0.258 |
 Mean arterial pressure, mmHg | 80.7 ± 17.7 | 80.3 ± 16.2 | 0.877 | 81.4 ± 17.8 | 79.8 ± 15.3 | 0.569 |
 Central venous pressure, mmHg | 10.2 ± 3.7 | 12.8 ± 4.0 | < 0.001 | 10.1 ± 3.9 | 12.9 ± 3.9 | 0.001 |
 Temperature, °C | 36.1 ± 0.4 | 36.2 ± 0.6 | 0.574 | 36.2 ± 0.4 | 36.1 ± 0.6 | 0.841 |
 Dopamine, μg/kg/min | 0.00 ± 0.00 | 0.02 ± 0.14 | 0.275 | 0.00 ± 0.00 | 0.01 ± 0.10 | 0.474 |
 Norepinephrine, μg/kg/min | 0.00 ± 0.00 | 0.00 ± 0.04 | 0.271 | 0.00 ± 0.00 | 0.00 ± 0.03 | 0.282 |
 Dobutamine, μg/kg/min | 0.00 ± 0.00 | 0.03 ± 0.51 | 0.588 | 0.00 ± 0.00 | 0.00 ± 0.00 | – |
At the end | ||||||
 Heart rate, bpm | 84.7 ± 19.6 | 95.6 ± 17.7 | < 0.001 | 84.1 ± 19.8 | 95.5 ± 18.8 | 0.001 |
 Systolic pressure, mmHg | 118.4 ± 20.7 | 113.4 ± 16.3 | 0.063 | 117.7 ± 21.6 | 114.2 ± 16.7 | 0.297 |
 Diastolic pressure, mmHg | 61.5 ± 11.4 | 57.0 ± 11.0 | 0.010 | 60.6 ± 10.7 | 57.2 ± 11.2 | 0.092 |
 Mean arterial pressure, mmHg | 80.4 ± 13.8 | 76.1 ± 12.9 | 0.036 | 80.0 ± 13.9 | 76.5 ± 12.1 | 0.127 |
 Central venous pressure, mmHg | 9.3 ± 4.7 | 11.0 ± 2.7 | 0.001 | 9.6 ± 4.4 | 10.9 ± 2.9 | 0.043 |
 Temperature, °C | 36.1 ± 0.6 | 37.5 ± 0.5 | < 0.001 | 36.1 ± 0.6 | 37.5 ± 0.6 | < 0.001 |
 Dopamine, μg/kg/min | 0.00 ± 0.00 | 0.01 ± 0.13 | 0.346 | 0.00 ± 0.00 | 0.00 ± 0.00 | – |
 Norepinephrine, μg/kg/min | 0.06 ± 0.12 | 0.02 ± 0.05 | < 0.001 | 0.06 ± 0.11 | 0.02 ± 0.04 | < 0.001 |
 Dobutamine, μg/kg/min | 0.13 ± 1.02 | 0.29 ± 1.24 | 0.392 | 0.16 ± 1.10 | 0.24 ± 1.16 | 0.686 |