Table 2 Intraoperative Variables
|  | Colloid (n = 27) | Crystalloid (n = 29) |  | ||
|---|---|---|---|---|---|
Duration | |||||
 Anaesthesia, hrs | 5.8 | [4.2, 6.5] | 4.6 | [3.8, 6.1] | p = 0.48 |
 Surgery, hrs | 4.2 | ± 1.7 | 3.9 | ± 1.4 | p = 0.38 |
Fluid Management | |||||
 Crystalloid, mL | 1737 | [1091, 2474] | 3250 | [2461, 4261] | p < 0.01 |
 Colloid, mL | 1250 | [750, 1750] | 0 | [0, 0] | p < 0.01 |
 Number of Boluses, No. | 5 | [3, 7] | 7 | [5, 8] | p = 0.14 |
 Blood given, mL | 0 | [0, 0] | 0 | [0, 0] | p = 0.08 |
 Additional Fluids, mL | 500 | [400, 500] | 500 | [400, 600] | p = 0.81 |
 Est. Blood Loss, mL | 500 | [200, 900] | 300 | [100, 650] | p = 0.07 |
 Estimated Urine output, mL | 400 | [250, 650] | 350 | [213, 625] | p = 0.52 |
Hemodynamic | |||||
 TWA MAP, mmHg | 76 | ± 5 | 79 | ± 7 | p = 0.12 |
 TWA SV, mL | 87 | ± 18 | 76 | ± 19 | p = 0.04 |
 Et Sevoflurane, Vol% | 1.7 | ± 0.4 | 1.6 | ± 0.3 | p = 0.33 |
 Heart Rate, beats min−1 | 71 | ± 11 | 72 | ± 9 | p = 0.86 |
 Cardiac Output, L min− 1 | 5.8 | ± 1.3 | 5.2 | ± 1.4 | p = 0.13 |
 TWA SVR, dyn sec cm−5 | 1022 | ± 70 | 1154 | ± 60 | p = 0.14 |
Arterial Blood Gas Analysis | |||||
 pH | 7.34 | [7.31, 7.39] | 7.36 | [7.33, 7.38] | p = 0.70 |
 BE | −1.9 | ± 1.6 | −1.5 | ± 1.9 | p = 0.43 |
 Hb, mg/dL | 10.4 | ± 1.4 | 11.2 | ± 1.7 | p = 0.07 |
 Lactate, mmol/L | 1.2 | [1.0, 1.5] | 1.3 | [1.1, 2.0] | p = 0.07 |
 Sodium, mmol/L | 140 | [138, 140] | 139 | [138, 140] | p = 0.16 |