From: Comparative study between the effect of dexmedetomidine and lidocaine infusion in lumbar fixation on hemodynamics, fentanyl requirements, and postoperative analgesia
Time of first analgesia (min)
Group D (n = 33)
Group X (n = 33)
t test
p value
Mean ± SD
159.64 ± 30.27
124.78 ± 24.66
4.277
0.009*