Table 4.
Patient characteristics during surgery
| Variable | Beginning of surgery | 1 h | 2 h | 3 h | 4 h | End of surgery |
|---|---|---|---|---|---|---|
| Number | ||||||
| GDFR group | 73 (100%) | 73 (100%) | 73 (100%) | 36 (49%) | 25 (34%) | 73 (100%) |
| Control group | 72 (100%) | 72 (100%) | 72 (100%) | 37 (51%) | 24 (33%) | 72 (100%) |
| p value | 1.00 | 1.00 | 1.00 | 0.80 | 0.92 | 1.00 |
| MAP (mmHg) | ||||||
| GDFR group | 83 ± 14 | 75 ± 9 | 77 ± 10 | 77 ± 11 | 73 ± 9 | 82 ± 11 |
| Control group | 80 ± 15 | 78 ± 11 | 80 ± 14 | 76 ± 11 | 82 ± 11 | 78 ± 11 |
| p value | 0.17 | 0.09 | 0.16 | 0.93 | 0.12 | 0.07 |
| PETCO2 (mmHg) | ||||||
| GDFR group | 29 ± 3 | 29 ± 4 | 29 ± 3 | 29 ± 3 | 29 ± 3 | 31 ± 4 |
| Control group | 30 ± 3 | 29 ± 3 | 29 ± 3 | 30 ± 3 | 32 ± 4 | 28 ± 3 |
| p value | 0.20 | 0.68 | 0.69 | 0.44 | 0.06 | 0.79 |
| Sodium (mmol/l) | ||||||
| GDFR group | 137.8 ± 4.8 | 134.5 ± 5.7 | 135.9 ± 4.7 | 136.8 ± 5.5 | 136.2 ± 3.3 | 137.3 ± 4.5 |
| Control group | 136.0 ± 5.5 | 134.3 ± 5.8 | 136.1 ± 5.2 | 137.4 ± 5.3 | 139.0 ± 6.7 | 137.5 ± 5.1 |
| p value | 0.03 | 0.81 | 0.86 | 0.64 | 0.07 | 0.84 |
| Diuresis (ml/kg/h) | ||||||
| GDFR group | 0 | 5.58 ± 1.74 | 5.19 ± 1.37 | 4.97 ± 1.85 | 4.41 ± 1.73 | 4.12 ± 1.39 |
| Control group | 0 | 5.76 ± 1.50 | 5.52 ± 1.77 | 5.03 ± 1.63 | 5.01 ± 1.45 | 4.12 ± 1.39 |
| p value | 1 | 0.52 | 0.18 | 0.92 | 0.26 | 0.80 |
Values are presented as mean ± standard deviation
MAP mean arterial pressure, P ET CO 2 peak end-tidal CO2