Abstract
Brachial plexus block via supraclavicular approach performed with the help of ultrasound assistance, is a promising anaesthetic alternative for upper limb surgery, when compared with general anaesthesia. It provides good surgical anaesthesia and better post-operative analgesia. We compared the anaesthetic and analgesic efficacy of two additives, nalbuphine and tramadol with 0.375% ropivacaine.A double-blind, cross-sectional study, performed prospectively on 82 patients who were randomly assigned into Group N (41) and Group T (41). Patients were posted for surgical procedure of upper limb under supraclavicular brachial plexus block. Group N received inj. Ropivacaine 0.375% 25 ml plus 1ml (10 mg) of Nalbuphine plus 1ml of normal saline. Patients in Group T received inj. Ropivacaine 0.375% 25 ml with Inj. Tramadol 2 ml (100 mg). Total volume was 27 ml in both groups. Duration of postoperative analgesia was the primary outcome of our study. The secondary outcomes were the sensory and motor block characteristics (onset and duration), change in hemodynamic parameters and side effects.A statistically significant difference was noted in the duration of postoperative analgesia [Group N: 648.27 (± 124.69) minutes, Group T: 514.73 (± 43.15) minutes; P <0.001]. In terms of onset of both sensory and motor block no statistically significant difference was noted. A significant difference was noted in duration of sensory block (Group N: 545.85 ± 118.13 min; Group T: 416.71 ± 50.43 min; P <0.001). The mean duration of motor block was 482.93 ± 120.07 min in nalbuphine group and 356.59 ± 43.74 min in tramadol group; P <0.001.Nalbuphine 10mg is a better adjuvant to 0.375% ropivacaine when compared with tramadol 100 mg. It prolongs the duration of sensory block and motor block and increases the duration of analgesia postoperatively.
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