• Khalida Ajmal, Akbar Waheed, Rashada Farooqi, and Qaisar Mansoor.
• Dr. Khalida Ajmal, MBBS, M.Phil., CHPE, Department of Pharmacology, Wah Medical College, Wah Cantt, Pakistan.
• Pak J Med Sci. 2024 Oct 1; 40 (9): 211821232118-2123.

ObjectivesTo determine the impact of intravenous Dexmedetomidine (Dex) administered perioperatively on stress response markers in patients undergoing ENT surgeries.MethodsThis randomized interventional study was conducted at POFs Hospital and NUMS affiliated WMC, Wah Cantt, in collaboration with IIMC Rawalpindi, Pakistan, from October 2021 to April 2022. One hundred patients aged between 15-60 years, after satisfying the inclusion standards were randomly divided into two groups C and D. Group-C (n=50) received normal saline in addition to the standard anesthesia protocol. The intervention Group-D (n=50) was administered 1µg/kg dexmedetomidine hydrochloride intravenously over 10 minutes just before the induction followed 0.5μg/kg/hr as maintenance dose till the end of surgery. Serum inflammatory biomarkers (interleukins-6, TNF-α and cortisol) were measured in blood samples in both groups, taken at 0 (T0), 30 minutes(T1), and two hours (T2) time intervals and analyzed by using Enzyme-linked immunosorbent assay (ELISA). Data was statistically analyzed using SPSS 23.ResultsThe patients receiving Dex showed marked decrease in serum levels of cortisol, TNF- α and interleukins-6, from 139.73 to10.18, 99.51 to 0.96 and 85.09 to 0.96 respectively. Comparison between C and D groups revealed significant differences (p≤0.05) in these serum biomarkers.ConclusionsIn the present study, intravenous Dex suppressed the intraoperative rise in levels of cytokine secretion and enhanced smooth recovery with no incidence of nausea and vomiting. These effects could be attributed to the anti-inflammatory effects of dexmedetomidine.Copyright: © Pakistan Journal of Medical Sciences.

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