Table 3 Comparison between group A and group B regarding total fentanyl used intra-operatively and in the first 24 h postoperatively and the time needed for the first requested rescue analgesia
|  | Group A | Group B | P value • | |
|---|---|---|---|---|
No. = 15 | No. = 15 | |||
Total Fentanyl used intra-op in μg | Mean ± SD | 110 ± 20.7 | 136.67 ± 29.68 | 0.008 |
Time needed for 1st requested rescue analgesia | Mean ± SD | 9.13 ± 3.48 | 5.47 ± 4.07 | 0.013 |
Total Fentanyl use in first 24 h in μg | Mean ± SD | 93.33 ± 37.16 | 133.33 ± 61.72 | 0.040 |