Table 2 Intraoperative fentanyl, isoflurane consumption, and postoperative total morphine consumption in both groups

Sample size,n

27

28

The mean intraoperative fentanyl consumption(SD) in (µg)

100.74 ± 35.07

82.86 ± 13.57

Time to the 1^st rescue analgesic request (IQR) in hours

12 (12–15.75)

18.5 (18.25–18.75)

The cases required postoperative morphine (SD)

11(40.74%%)

2 (7.14%%)

(n = 11)

(n = 2)

The Postoperative total morphine consumption in 1^st 24 h (IQR) in (mg)

0 (0–3)

0 (0–0)