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ORIGINAL ARTICLE
Year : 2019  |  Volume : 20  |  Issue : 2  |  Page : 82-88

Efficacy of nalbuphine as an adjuvant to 0.5% ropivacaine for ultrasound-guided supraclavicular brachial plexus block in upper limb surgeries: A prospective randomized double-blind study


Department of Anaesthesiology, Jawaharlal Nehru Medical College and Hospital, Ajmer, Rajasthan, India

Correspondence Address:
Dr. Surendra Kumar Sethi
Department of Anaesthesiology, Jawaharlal Nehru Medical College and Hospital, JLN Medical College Circle, Near Kala Bagh, Ajmer - 305 001, Rajasthan
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/TheIAForum.TheIAForum_31_19

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Background: The benefit of postoperative analgesia in regional block is short lived due to limited duration of action of local anesthetics. Various adjuvants have been tried to enhance the duration of analgesia. The aim of this study was to evaluate the analgesic efficacy and safety of nalbuphine as an adjuvant to 0.5% ropivacaine for ultrasound-guided supraclavicular brachial plexus block. Methods: A prospective, randomized, double-blind study was conducted on 100 patients of American Society of Anesthesiologists physical status I/II aged 18–70 years scheduled for upper limb surgeries under USG supraclavicular brachial plexus block. The patients were randomly allocated into two groups of 50 each to receive either 20 ml of 0.5% ropivacaine with 1 ml of normal saline (Group A) or 20 ml of 0.5% ropivacaine with 1 ml (10 mg) of nalbuphine (Group B). The onset and duration of sensory and motor block, duration of analgesia, and side effects were noted. Results: There was no significant difference in mean onset of sensory and motor blocks between the two groups; but in Group B, there was significantly longer duration of sensory block (401.20 ± 19.963 vs. 387.60 ± 29.731 min, P = 0.009), longer duration of motor block (333.20 ± 20.941 vs. 323.00 ± 26.283 min, P = 0.03), and prolonged duration of analgesia (502.60 ± 22.751 vs. 441.20 ± 30.815 min, P < 0.0001) as compared to Group A. No significant side effects were observed in any of the two groups (P > 0.05). Conclusion: Nalbuphine (10 mg) used as an adjuvant to 0.5% ropivacaine for supraclavicular brachial plexus block prolonged the duration of both sensory and motor blockade along with the duration of postoperative analgesia without any increase in side effects.


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