COMPARISON BETWEEN 0.5% BUPIVACAINE + DEXAMETHASONE COMBINATION AND 0.5% BUPIVACAINE + CLONIDINE COMBINATION IN BRACHIAL PLEXUS BLOCK BY SUPRACLAVICULAR APPROACH USING ULTRASOUND-GUIDED TECHNIQUE
Journal Title: Journal of Evidence Based Medicine and Healthcare - Year 2017, Vol 4, Issue 73
Abstract
BACKGROUND Brachial plexus blocks, alone or in combination with general anaesthesia has become one of the most important anaesthesia techniques for surgeries in the upper limb. Prolongation of analgesia using perineural catheters are not yet popular and we are in need for adjuvant that can prolong the action of local anaesthetics after single injection peripheral nerve blocks. Dexamethasone and clonidine are two commonly used adjuvants. This study was undertaken to compare the analgesic efficacy of dexamethasone and clonidine. MATERIALS AND METHODS Ninety adult patients fitting under the inclusion criteria were assigned to 3 groups of 30 each and received ultrasound-guided supraclavicular brachial plexus block. They received either dexamethasone 8 mg (group D) or clonidine 1 mcg/kg (group C) or saline 2 mL (group S) with 15 mL of 0.5% bupivacaine. The onset of sensory and motor blocks, duration of analgesia and the duration of motor block were assessed. RESULTS The onset of sensory and motor block were comparable in all the three groups (17.50 ± 2.86 minutes and 30.33 ± 4.14 minutes; 17.17 ± 3.13 minutes and 31.0 ± 4.8 minutes; 18.33 ± 3.55 minutes and 31.0 ± 5.48 minutes for groups D, C and S, respectively. The duration of analgesia and motor blockade was markedly prolonged in dexamethasone group (19.41 ± 2.60 hours and 17.19 ± 2.13 hours) and moderately prolonged in clonidine group (11.49 ± 1.66 hours and 10.41 ± 1.18 hours) when compared to saline group (7.56 ± 1.65 hours and 6.22 ± 1.43 hours). CONCLUSION Dexamethasone proves to be a better adjuvant compared to clonidine as it considerably prolongs analgesia and is devoid of significant side effects. But, the prolonged motor block is still a matter of concern and these arch for adjuvant that selectively prolongs analgesia without impairing motor function continues.
Authors and Affiliations
Yadhuraj M. K, Narasimha Reddy, Vinay D. M, Akhil Rao U. K
Keywords
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- EP ID EP283402
- DOI 10.18410/jebmh/2017/865
- Views 111
- Downloads 0
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