A COMPARISON BETWEEN INTRATHECAL NALBUPHINE AND DEXMEDETOMIDINE AS ADJUVANTS TO HYPERBARIC BUPIVACAINE FOR LOWER LIMB ORTHOPEDIC SURGERIES

Author:

GEETANJALI SINGHAL ,ARUN KUMAR SAXENA ,GAGAN BHARADWAJ

Abstract

Objective: Sub arachnoid block is a reasonably safe and simple technique of regional anesthesia. This randomized double-blind study was conducted to compare the efficacy of intrathecal nalbuphine and Dexmedetomidine as adjuvant with hyperbaric bupivacaine for lower limb orthopedic surgeries.  Methods: Sixty adult patients of American Society of Anaesthesiologists physical status 1 and 2 who were scheduled for elective lower limb orthopedic surgeries were divided into two groups, D and N, of 30 each. Group D patients received dexmedetomidine 4 mcg and Group N received nalbuphine 2 mg as adjuvant along with bupivacaine heavy 0.5% (3 mL) intrathecally. Sensory and motor block characteristics and time to first rescue analgesic (intravenous tramadol 100 mg) were the primary end points and drug-related side effects such as pruritis, nausea, vomiting, and respiratory depression were taken as secondary end points. Subsequently, data were entered into Microsoft Excel spreadsheet and Statistical Package for the Social Science software version 22 was used for statistical analysis. Results: All 60 patients showed adequate block. The onset of sensory and motor block was statistically comparable in both groups. The duration of sensory and motor block and duration of analgesia were markedly extended in dexmedetomidine group patients. There were no significant intraoperative or post-operative side-effects in both group of patients. Conclusion: Dexmedetomidine (4 mcg) increases the sensory and motor block duration and duration of post-operative analgesia significantly more than nalbuphine (2 mg), when administered intrathecally as an adjuvant to bupivacaine (15 mg).

Publisher

Innovare Academic Sciences Pvt Ltd

Subject

Pharmacology (medical),Pharmaceutical Science,Pharmacology

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