Table 1.
Baseline characteristics of study participants
| Group C (n = 31) | Group P (n = 31) | Group B (n = 30) | Group BP (n = 29) | F/x2/H | p value | ||
|---|---|---|---|---|---|---|---|
| Age (years, x̄ ± s) | 33.32 ± 8.03 | 33.52 ± 9.33 | 32.67 ± 8.84 | 28.48 ± 7.31 | 2.334 | 0.078 | |
| Patient sex, male (n, %) | 16 (51.6) | 15 (48.4) | 9 (30.0) | 9 (31.0) | 4.840 | 0.184 | |
| ASA classification (n, %) | 2.900 | 0.407 | |||||
| II | 13 (41.9) | 11 (35.5) | 17 (56.7) | 13 (44.8) | |||
| III | 18 (58.1) | 20 (64.5) | 13 (43.3) | 16 (55.2) | |||
| Height (cm, x̄ ± s) | 171.97 ± 8.28 | 171.58 ± 7.65 | 168.23 ± 8.21 | 169.21 ± 10.02 | 1.362 | 0.258 | |
| Weight (kg, x̄ ± s) | 121.08 ± 23.47 | 119.10 ± 20.97 | 111.33 ± 18.64 | 114.27 ± 24.82 | 1.233 | 0.301 | |
| BMI (kg/m2, x̄ ± s) | 40.77 ± 6.60 | 40.28 ± 5.43 | 38.73 ± 5.34 | 39.39 ± 5.67 | 0.751 | 0.524 | |
| Diseases of the patients at admission | |||||||
| Hepertension (n, %) | 13（41.9） | 10 (32.3) | 6 (20.0) | 9（31.0） | 3.420 | 0.331 | |
| Diabetes mellitus (n, %) | 4 (12.9) | 8 (25.8) | 6（20.0） | 8 (27.6) | 2.376 | 0.498 | |
| Surgery time [min, M (P25, P75)] | 129 (97,151) | 112 (90,137) | 113.5 (100,138) | 105 (81,136) | 6.056 | 0.109 | |
| Intraoperative propofol used (mg, x̄ ± s) | 375.32 ± 140.24 | 333.19 ± 101.33 | 326.83 ± 99.88 | 320.00 ± 92.54 | 1.146 | 0.337 | |
| Intraoperative remifentanil dosage (mg, x̄ ± s) | 3.39 ± 0.97 | 3.18 ± 1.05 | 2.95 ± 0.84 | 3.07 ± 0.84 | 1.205 | 0.311 | |
| Cumulative fluid volume (ml, x̄ ± s) | 1059.29 ± 239.51 | 1056.00 ± 227.52 | 1056.60 ± 253.57 | 1164.07 ± 165.33 | 1.662 | 0.179 | |
| Preoperative index | |||||||
| MAP (mmHg, x̄ ± s) | 104.45 ± 13.63 | 103.00 ± 12.59 | 101.47 ± 9.18 | 103.86 ± 13.96 | 0.327 | 0.806 | |
| HR (times/min, x̄ ± s) | 77.81 ± 5.13 | 79.52 ± 7.77 | 78.97 ± 6.00 | 77.93 ± 6.83 | 0.491 | 0.689 | |
| QoR-15 score (scores, x̄ ± s) | 138.26 ± 6.24 | 140.52 ± 7.63 | 141.03 ± 6.29 | 141.00 ± 4.29 | 1.346 | 0.263 | |
| Arterial blood gases | |||||||
| pH (x̄ ± s) | 7.41 ± 0.02 | 7.41 ± 0.03 | 7.42 ± 0.02 | 7.42 ± 0.02 | 2.304 | 0.080 | |
| PaO2 (mmHg, x̄ ± s) | 91.44 ± 29.88 | 97.47 ± 38.50 | 88.84 ± 8.51 | 98.44 ± 33.57 | 0.724 | 0.540 | |
| Na + (mmol/l, x̄ ± s) | 140.32 ± 1.99 | 139.70 ± 2.26 | 139.90 ± 2.09 | 139.83 ± 1.81 | 0.532 | 0.662 | |
| Cl- (mmol/l, x̄ ± s) | 105.65 ± 2.37 | 109.53 ± 16.91 | 106.60 ± 2.88 | 109.86 ± 18.98 | 0.823 | 0.484 | |
| K + (mmol/l, x̄ ± s) | 3.76 ± 0.30 | 3.69 ± 0.29 | 3.73 ± 0.27 | 3.59 ± 0.25 | 1.996 | 0.118 | |
| Ca2 + (mmol/l, x̄ ± s) | 1.13 ± 0.06 | 1.13 ± 0.06 | 1.14 ± 0.05 | 1.13 ± 0.04 | 0.213 | 0.887 | |
| HCO3- (mmol/l, x̄ ± s) | 25.70 ± 2.75 | 24.42 ± 1.97 | 24.72 ± 2.14 | 24.52 ± 1.89 | 2.153 | 0.097 | |
| BE (mmol/l, x̄ ± s) | 0.51 ± 1.45 | −0.69 ± 2.16 | 0.37 ± 2.06 | −0.11 ± 2.21 | 2.282 | 0.083 | |
| Lac (mmol/l, x̄ ± s) | 1.16 ± 0.52 | 1.08 ± 0.43 | 1.01 ± 0.49 | 0.99 ± 0.52 | 0.725 | 0.539 | |
| Glu (mmol/l, x̄ ± s) | 5.60 ± 0.81 | 5.75 ± 1.51 | 5.46 ± 0.73 | 5.67 ± 1.43 | 0.423 | 0.737 | |
ASA American Society of Anesthesiologists, BMI body mass index, pH potential of hydrogen, BE base excess, Lac lactate, Glu glucose