Intraoperative infusion of lidocaine 2% reduces postoperative fentanyl requirements for pain control in renal transplantation surgery

Ain-Shams Journal of Anesthesiology

Table 3 Time required for the first dose in the recovery/consumption of fentanyl in the recovery

Type of patients	No. of patients	Time in min: mean ± SD	p value
Lidocaine group	25	45.88 min ± 19.404 min	< 0.001
Fentanyl group	25	14.64 min ± 4.281 min
Type of patients	No. of patients	Fentanyl consumption in microgram: mean ± SD	p value
Lidocaine group	25	43.87 μg ± 26 μg	< 0.001
Fentanyl group	25	116.96 μg ± 37.92 μg

Analgesic requirements: the mean time for the request of the first dose of analgesic was significantly longer in lidocaine group than in fentanyl group (45.88 ± 19.404 vs 14.64 ± 4.281 with p value of < 0.001). There was a statistically significant difference between the 2 groups with p value < 0.001, increased fentanyl consumption in the recovery for postoperative analgesia in the fentanyl group (116.96 μg ± 37.92 μg) more than the consumption in the lidocaine group (26 μg ± 43.87 μg)