Table 2 Clinical characteristics in the four groups during perioperative period

Duration of Surgery (min)

100.6 ± 30.5

91.1 ± 35.7

88.6 ± 25.8

93.5 ± 31.6

0.710

Duration of anesthesia (min)

129.9 ± 33.0

115.3 ± 38.8

113.3 ± 26.2

118.1 ± 30.6

0.462

Waking time from surgery (min)

10.9 ± 3.5

9.7 ± 3.1

9.3 ± 2.5

8.4 ± 2.9

0.123

Total fluid intake from entering the operating theater to PACU (ml)

1171.9 ± 414.3

1180.6 ± 394.8

1030.0 ± 297.9

1152.4 ± 438.3

0.631

Patients with hypertension, n(%)

4 (25.0%)

2 (11.1%)

3 (16.7%)

2 (11.8%)

0.708

Dosage of propofol (mg/kg/h)

5.1 ± 1.0^△

5.2 ± 1.0^△

5.5 ± 1.1

6.1 ± 1.4

0.042

Dosage of remifentanil (μg/kg/h)

6.5 ± 2.4^*

5.8 ± 1.7^*

6.3 ± 2.2^*

8.4 ± 1.4

 < 0.001