Dexmedetomidine Versus Fentanyl on Postoperative Analgesic Profile in Laparoscopic Sleeve Gastrectomy

received an intravenous loading dose of DEX (1 μg/kg) over 15 minutes prior to the anesthetic induction. Following the intubation procedure, a maintenance infusion of DEX was delivered at a rate of 0.6 μg/kg/h. The infusion was discontinued upon trocars removal.

fentanyl (1 μg/kg) that was given intravenously slowly over 60 seconds before induction of anesthesia as a loading dose. Following intubation, a continuous infusion of fentanyl was administered at a rate of 1μg/kg/hr. The infusion was discontinued upon the removal of the trocars.