• Anesth Essays Res · Oct 2020

    Dexmedetomidine and Magnesium Sulfate as Adjuvant to 0.5% Ropivacaine in Supraclavicular Brachial Plexus Block: A Comparative Evaluation.

    • Usha Shukla, Dheer Singh, Jay Brijesh Singh Yadav, and Mahendra Singh Azad.
    • Department of Anaesthesiology, Uttar Pradesh University of Medical Sciences, Etawah, Uttar Pradesh, India.
    • Anesth Essays Res. 2020 Oct 1; 14 (4): 572-577.

    BackgroundDexmedetomidine and magnesium sulfate (MgSO4) as an adjuvant to local anesthetics and ultrasound guidance improves the quality of peripheral nerve block.AimWe aim to compare the efficacy of dexmedetomidine and MgSO4 as an adjuvant to ropivacaine in supraclavicular brachial plexus block.MethodologySixty patients undergoing upper extremity orthopedic surgery were randomly allocated into three groups of 20 each. Group A received 29 mL of 0.5% ropivacaine plus 1 mL of normal saline, Group B received 29 mL of 0.5% ropivacaine plus 1 mL dexmedetomidine (100 μg), and Group C received 29 mL of 0.5% ropivacaine plus 1 mL MgSO4 (250 mg). Onset and duration of sensory and motor block, duration of analgesia, quality of anesthesia, total 24 h analgesic consumption, sedation, and complications were recorded.Statistical AnalysisSoftware SPSS-16 was used for statistical analysis.ResultsThe onset of sensory block and motor block was fastest for Group B, followed by Group C and slowest in Group A. The duration of sensory block and motor block was maximum for Group B, followed by Group C and minimum for Group A. The duration of analgesia was maximum for Group B, followed by Group C and minimum for Group A. Analgesic consumption was minimum for Group B. Quality of anesthesia was better in Group B than other groups. The visual analog scale was higher in Group A than other groups. Group B reported higher sedation score.ConclusionDexmedetomidine provides earlier onset of sensory and motor block as well as prolonged duration of sensory and motor blocks and duration of analgesia is longer and postoperative rescue analgesia is less as compared to patients receiving MgSO4. The incidence of hypotension and bradycardia and sedation score was higher with dexmedetomidine.Copyright: © 2021 Anesthesia: Essays and Researches.

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