COMPARATIVE STUDY OF DEXMEDETOMIDINE VERSUS DEXAMETHASONE AS AN ADJUVANT FOR SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK.
Journal Title: GJRA-Global Journal For Research Analysis - Year 2019, Vol 8, Issue 5
Abstract
Introduction: Brachial plexus block is the most preferred anaesthetic technique for upper limb surgeries. Adding adjuvant to local anaesthetics for brachial plexus block may enhance the duration and quality of analgesia and also to decrease the dose of postoperative opioid analgesic. Aims and Objectives: The purpose of this study was to evaluate the effect of dexamethasone or dexmedetomidine when added as adjuvant during supraclavicular brachial plexus blocks (BPB) in respect to the onset and duration of sensory and motor block along with duration of analgesia. Methods: Sixty ASA physical status I-II patients of age group between 20 to 60 years with elective forearm and hand surgery under brachial plexus blocks were randomly allocated into two equal groups in a randomised double blind fashion. Group DM (n = 30), to receive 15 ml of 0.5% bupivacaine and 15 ml of 2% lignocaine with Adr + 1 ml of Dexmedetomidine (50mcg) + 1ml distilled water, making a total of 32 ml and another Group DX (n = 25), to receive 15 ml of 0.5% bupivacaine and 15 ml of 2% lignocaine with Adr. + 2ml of Dexamethasone (8 mg). A nerve stimulation technique was used in all patients. The onset time and duration of sensory and motor blocks, quality of intraoperative analgesia and duration of analgesia were assessed. Results: The time of onset of sensory and motor block was signicantly less in group DM as compared to group DX (P < 0.05). The duration of the sensory and motor block as well as duration of post operative analgesia was signicantly more in group DM as compared with group DX (P<0.05), but there was no statistically signicant difference between both the groups with respect to the heart rate, mean arterial pressure and spo2. Conclusions: Dexmedetomidine 50 g was more effective than dexamethasone 8 mg in extending the duration of supraclavicular brachial plexus block and prolonging the duration of post operative analgesia and it also signicantly decreases the onset time of block.
Authors and Affiliations
Ankit singh, Neelesh Nema*
Keywords
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