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Background
Regional anaesthesia for upper limb surgery is routinely performed with brachial plexus blocks. A retroclavicular brachial plexus block has recently been described, but has not been adequately compared with another approach. This randomised controlled single-blinded trial tested the hypothesis that the retroclavicular approach, when compared with the supraclavicular approach, would increase the success rate.Methods
One hundred and twenty ASA physical status 1–3 patients undergoing distal upper limb surgery were randomised to receive an ultrasound-guided retroclavicular or supraclavicular brachial plexus block with 30 mL of a 1:1 mixture of mepivacaine 1% and ropivacaine 0.5%, using a single-injection technique without needle tip repositioning. The primary outcome was block success rate 30 min after local anaesthetic injection, defined as a composite score of 14 of 16 points, inclusive of sensory and motor components. Secondary outcomes included needling time, time to first opioid request, oxycodone consumption, and pain scores (numeric rating scale, 0–10) at 24 h postoperatively.Results
Success rates were 98.3% [95% confidence interval (CI): 90.8%, 99.9%] and 98.3% [95% CI: 90.9%, 99.9%] in the supraclavicular and retroclavicular groups, respectively (P=0.99). The mean needling time was reduced in the supraclavicular group [supraclavicular: 5.0 (95% CI: 4.7, 5.4) min; retroclavicular: 6.0 (95% CI: 5.4, 6.6) min; P=0.006]. The mean time to first opioid request was similar between groups [supraclavicular: 439 (95% CI: 399, 479) min; retroclavicular: 447 (95% CI: 397, 498) min; P=0.19] as were oxycodone consumption [supraclavicular: 10.0 (95% CI: 6.5, 13.5 mg; retroclavicular: 7.9 (95% CI: 4.8, 11.0) mg; P=0.80] and pain scores at 24 h postoperatively [supraclavicular: 1.2 (95% CI: 2.1, 2.7); retroclavicular: 1.5 (95% CI: 1.6, 2.4); P=0.09].Conclusions
Ultrasound-guided retroclavicular and supraclavicular brachial plexus blocks share identical success rates, while providing similar pain relief. Reduced needling time in the supraclavicular approach is not clinically relevant.Clinical trial registration
NCT02641613. 相似文献Methods: Data of 211 eyes of 145 patients with AU associated with AS were reviewed retrospectively.
Results: Mean follow-up time was 6.31 ± 6.33 years. Men were younger than women at AS diagnosis (p = 0.035). The mean number of uveitis flares was highest during the first quarter of the year and lowest during the third quarter (p = 0.017). Immunosuppressive agent use was higher in women than men (p = 0.052). Ocular complications developed in 120 eyes (56.9%), and the complication rate was 0.146/eye year. Males developed cystoid macular edema more frequently than females (p = 0.05). Glaucoma was observed more often in early-onset disease (age at AS onset <45 years) than late-onset disease (p = 0.028).
Conclusions: Visual prognosis of AU in patients with AS was good, although more than half of the eyes developed ocular complications (56.9%). 相似文献