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Indian Journal of Anesthesia and Analgesia

Volume  4, Issue 3, Jul-Sep 2017, Pages 888-893
 

Original Article

A Study on Effect of Intravenous Infusion of Dexmedetomidine in General Anesthesia on Perioperative Analgesic Requirements

Thaker Komal R.1 Goswami Shakuntala J.2

1Assistant Professor, Department of Anesthesiology, Pacific Medical College And Hospital, Udaipur, Rajasthan 313001, India. 2Associate Professor, Department of Anesthesiology, B.J Medical College Civil Hospital, Ahmedabad, Gujarat 380016, India

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DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.4317.57

Abstract

Background: Dexmedetomidine is an alpha-2 receptor agonist having sympatholytic properties which provides very good hemodynamic stability during surgery without any adverse effect on respiration. But its anti-nociceptive property has not been studied much. Aim: To study the effects of intra operative infusion of dexmedetomidine on perioperative analgesics requirement, sedation and recovery characteristics in patients undergoing laparoscopic surgery. Material and Methodology: Total 50 subjects posted for elective laparoscopic surgery were selected and divided in group D and C, 25 in each. D group subjects were given an initial loading dose of dexmedetomidine 1 g/kg IV over 10 min before the induction of anesthesia, followed by continuous infusion at 0.6g/kg/hr. while Group C patients received equal amount of 0.9% saline intraoperative. Requirement of analgesic in postoperative period was estimated along with visual analog score, sedation score and recovery characteristics. Results: In D group 20 out of 25 subjects required either one or two doses of analgesic while in C group 19 out of 25 subjects required either three or four doses (P<0.05). Duration of analgesia was 8.32±1.55 hours in D group while 1.20±0.35 hours among C group (P<0.05). Among D group Statistical significant increase in sedation score at 10 minutes (4.57±0.38) postoperative till 24 hours postoperative (1.10±0.64) was found as compared to the group C [3.94±0.55 (10 minutes); 1.44±0.49 (24 hours)]. Modified post anesthetic discharge score was 12.25±1.35 and 9.49±1.39 among D and C group subjects respectively (P<0.05). Conclusion: Dexmedetomidine provides excellent analgesia. It induces sedation but do not alter recovery.

  


Keywords : Dexmedetomidine; Analgesia; Laparoscopy; Visual Analog Score.
Corresponding Author : Komal Ravi Thaker, G-6 royal Rose Apartment, New Navratna Complex, opp. The Gyan Gadh Vatika, Udaipur, Rajsthan-313001, India.