Table 2 Clinical characteristics of patients among two groups during perioperative period

Intraoperative mean arterial blood pressure (mmHg, \(\overline x\) ± s)

86.34 ± 9.01

87.51 ± 8.95

0.192

Intraoperative mean heart rate (time/min, \(\overline x\) ± s)

65.06 ± 6.45

65.00 ± 5.99

0.934

Intraoperative mean blood oxygen saturation (%, \(\overline x\) ± s)

99.79 ± 0.68

99.80 ± 0.61

0.828

Intraoperative mean temperature (℃, \(\overline x\) ± s)

36.28 ± 0.39

36.30 ± 0.38

0.477

Infusion volume (ml, \(\overline x\) ± s)

1789.03 ± 756.32

1760.37 ± 811.86

0.417

Bleeding volume (ml, \(\overline x\) ± s)

103.70 ± 97.37

100.24 ± 92.18

0.715

Urine volume (ml, \(\overline x\) ± s)

421.33 ± 345.81

390.24 ± 312.41

0.207

Operation time (min, \(\overline x\) ± s)

184.97 ± 82.01

187.34 ± 91.67

0.786

Anesthesia time (min, \(\overline x\) ± s)

238.95 ± 93.70

240.76 ± 106.10

0.857

TOF ratio > 0.9 before extubation n, (%)

196(100%)

205(100%)

1.000