Dexmedetomidine on Continuous Infraclavicular Block after Elbow Arthrolysis
1Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, P. R. China
DOI: 10.22514/sv.2020.16.0017 Vol.16,Issue 1,June 2020 pp.131-135
Published: 30 June 2020
Aim: To evaluate the efficacy of dexmedetomidine in the analgesia of contin-uous infraclavicular brachial plexus block after elbow arthrolysis. Methods: Sixty patients who received unilateral elbow arthrolysis and met inclusion criteria were randomly divided into 2 groups (n = 30): dexmedetomidine + ropivacaine group (group D) and ropivacaine group (group R). The formulation of analgesic pump was 0.2% ropivacaine 240 mL + 2 ug/kg dexmedetomidine in D group and 0.2% ropivacaine 240 mL in R group. The VAS scores at rest, 4 h (T1), 8 h (T2), 12 h (T3), 24 h (T4), 36 h (T5) and 48 h (T6) after operation were recorded, and NRS scores during functional exercise at 24 h (T4), 36 h (T5) and 48 h (T6) after operation were recorded. The incidence of adverse reactions and satisfactory degree of analgesia in two groups were recorded. Results: The success rate of block during catheterization was 100% in both groups. Compared with group R, VAS score of group D at each time point after operation decreased (p < 0.05); NRS score during functional exercise at each time point after operation decreased (p < 0.05); the additional pressing times of analgesic pump within 48 h decreased (p < 0.05); the incidence of dizziness, nausea and vomiting after operation decreased (p < 0.05); and satisfaction degree of analgesia 48 h after operation was higher in group D (p < 0.05). Conclusion: Dexmedetomidine combined with ropivacaine can produce effective analgesic and sedative effects, and reduce the incidence of complications in the analgesia of continuous infraclavicular brachial plexus block after elbow arthrolysis.
Dexmedetomidine, Brachial plexus block, Elbow joint, Analgesia, Pain
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