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ORIGINAL ARTICLE
Year : 2019  |  Volume : 33  |  Issue : 1  |  Page : 31-34

Dexmedetomidine with 0.375% bupivacaine for prolongation of postoperative analgesia in supraclavicular brachial plexus block


Department of Anaesthesiology and Critical Care, Pt. J. N. M. Medical College, Raipur, Chhattisgarh, India

Correspondence Address:
Dr. Rashmi Naik Bhuaarya
Department of Anaesthesiology and Critical Care, Pt. J. N. M. Medical College, Raipur, Chhattisgarh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijpn.ijpn_9_19

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Background: Regional anesthesia is the recommended technique for upper-limb surgeries with better postoperative profile. Various agents have been used as adjuvants to prolong the duration of action and improve the efficacy of local anesthetic agents, α2-agonists being the most recent ones. We evaluated the effect of dexmedetomidine with bupivacaine for prolongation of the duration of analgesia in supraclavicular brachial plexus block. Materials and Methods: After Institutional Ethics and Scientific Committee approval and written informed consent, this prospective, observational study was carried out on 64 ASA Grade I and II patients of either sex, aged 18–60 years who underwent upper-limb surgery under brachial plexus block. Patients received either bupivacaine or bupivacaine with dexmedetomidine and were randomly divided into two groups. The primary outcome was duration of analgesia, and the secondary outcome was onset and duration of sensory and motor blockade, Ramsay sedation score, and side effects, if any observed at scheduled intervals. Results: Duration of analgesia in Group B was 391.46 ± 30.66 min and in Group BD was 810 ± 39.52 min (P < 0.0001), onset of sensory block in Group B was 7.9 ± 1.33 min and in Group BD was 5.65 ± 0.68 min (P < 0.0001), onset of motor block in Group B was 15.65 ± 1.66 min and in Group BD was 8.93 ± 0.788 min (P < 0.0001), duration of sensory block in Group B was 236.43 ± 17.52 min and in Group BD was 479.68 ± 40.50 min (P < 0.0001), duration of motor block in Group B was 206.09 ± 24.26 min and in Group BD was 447.81 ± 41.88 min, and slightly higher Ramsay sedation score was seen in Group BD as compared to Group B. The side effects were found to be insignificant and incidental. Only two cases of bradycardia(6.25%) and one case(3.12%) of hypotension were noticed in group BD. Conclusion: Addition of dexmedetomidine to bupivacaine was associated with prolonged analgesia, prolonged sensory and motor blockades with mild sedation.


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