Control group

(n = 13)

Study group

(n = 16)

Age

(years)

31

(20 - 58)

22.5

(18 - 77)

BMI

(kg/m2)

19.0

(14.2 - 23.3)

18.45

(16.4 - 58)

ASA classification

(1/2/3)

6/6/1

11/5/0

Anesthesia time

(min)

165

(110 - 310)

172.5

(130 - 235)

Operation time

(min)

95

(45 - 200)

100

(75 - 155)

An amount of fentanyl

in perioperative period (μg)

200

(100 - 400)

200

(100 - 400)

An amount of remifentanil

in perioperative period (mg)

1.0

(0.3 - 1.6)

0.95

(0.5 - 2.5)