Comparison of Intravenous Dexmedetomidine versus Midazolam for Sedation in Spinal Anesthesia: A Randomized Controlled Study
Main Article Content
Abstract
Background: Sedation during spinal anesthesia improves patient comfort and surgical conditions. Dexmedetomidine
and midazolam are commonly used agents with different pharmacological profiles.
Objectives: To compare the efficacy, hemodynamic stability, and recovery profile of dexmedetomidine versus midazolam
in patients undergoing surgeries under spinal anesthesia.
Materials and Methods: This randomized controlled study included 100 patients divided into two groups Group D
(dexmedetomidine) and Group M (midazolam). Sedation levels, hemodynamic parameters, recovery time, and adverse
effects were recorded and analyzed.
Results: Group D showed significantly better sedation scores and stable hemodynamics compared to Group M (p <
0.05). Recovery time was shorter in Group D. Incidence of respiratory depression was higher in Group M.
Conclusion: Dexmedetomidine provides superior sedation with better hemodynamic stability and recovery profile
compared to midazolam.
Article Details
References
2. Pollard JB. Cardiac arrest during spinal anesthesia: common mechanisms and strategies for prevention. Anesth Analg. 2001;92(1):252–256.
3. Reves JG, Fragen RJ, Vinik HR, Greenblatt DJ. Midazolam: pharmacology and uses. Anesthesiology. 1985;62(3):310–324.
4. Kamibayashi T, Maze M. Clinical uses of alpha2-adrenergic agonists. Anesthesiology. 2000;93(5):1345–1349.
5. Ebert TJ, Hall JE, Barney JA, Uhrich TD, Colinco MD. The effects of increasing plasma concentrations of dexmedetomidine in humans. Anesthesiology. 2000;93(2):382–394.
6. Venn RM, Grounds RM. Comparison between dexmedetomidine and propofol for sedation in the intensive care unit. Crit Care. 2001;5(3):199–205.
7. Hall JE, Uhrich TD, Barney JA, Arain SR, Ebert TJ. Sedative and analgesic properties of dexmedetomidine. Anesth Analg. 2000;90(3):699–705.
8. Fragen RJ, Avram MJ. Midazolam: pharmacokinetics and pharmacodynamics. Clin Pharmacokinet. 1987;12(4):244–257.
9. Bekker A, Sturaitis MK. Dexmedetomidine for neurological surgery. Neurosurgery. 2005;57(1 Suppl):1–10.
10. Tufanogullari B, White PF, Peixoto MP, et al. Dexmedetomidine infusion during laparoscopic surgery. Anesth Analg. 2008;106(6):1741–1748.
11. Talke P, Richardson CA, Scheinin M, Fisher DM. Postoperative pharmacokinetics and sympatholytic effects of dexmedetomidine. AnesthAnalg. 1997;85(5):1136–1142.
12. Arain SR, Ebert TJ. The efficacy of dexmedetomidinevs morphine for postoperative analgesia. Anesth Analg. 2002;95(2):461–466.
13. Bhana N, Goa KL, McClellan KJ. Dexmedetomidine. Drugs. 2000;59(2):263–268.
14. Dundee JW, Halliday NJ, Harper KW, Brogden RN. Midazolam: a review of its pharmacological properties. Drugs. 1984;28(6):519–543.
15. Belleville JP, Ward DS, Bloor BC, Maze M. Effects of intravenous dexmedetomidine in humans. Anesthesiology. 1992;77(6):1125–1133.
16. Ebert TJ, Maze M. Dexmedetomidine: another arrow for the clinician’s quiver. Anesthesiology. 2004;101(3):568–570.
17. Gerlach AT, Dasta JF. Dexmedetomidine: an updated review. Ann Pharmacother. 2007;41(2):245–252.
18. Vijaya Bhaskar B, Nagendra Pasupuleti, & Hari Krishna B. A Study to Compare the Effect of Intrathecal 0.5% (Heavy) Bupivacaine With Dexmedetomidine (5µg) and Intrathecal 0.5% (Heavy) Bupivacaine With Fentanyl (25µg) For Lower Abdominal and Gynecological Surgeries. Asian Pacific Journal of Health Sciences, 2019; 6(2): 157–166.
19. Kaygusuz K, Gokce G, Gursoy S, et al. A comparison of dexmedetomidine and midazolam for sedation in spinal anesthesia. Eur J Anaesthesiol. 2008;25(11):1–6.
20. Gupta P, Bajaj A, Kaur S, et al. Comparative evaluation of dexmedetomidine and midazolam. Saudi J Anaesth. 2011;5(3):258–263.