{"title":"Analgesic effects of dexmedetomidine combined with shoulder nerve blocks before arthroscopy: a meta-analysis of randomized-controlled trials.","authors":"Wenhao Lu, Djandan Tadum Arthur Vithran, Bubacarr Jallow, Shide Jiang, Yusheng Li, Licheng Wei, Wenfeng Xiao","doi":"10.1530/EOR-2024-0069","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>Dexmedetomidine is a widely employed adjunct in nerve block anesthesia for shoulder arthroscopy. This study aimed to assess the analgesic efficacy of dexmedetomidine as a nerve block adjuvant in patients undergoing shoulder arthroscopy.</p><p><strong>Methods: </strong>A thorough search of PubMed/MEDLINE, Embase, Web of Science and the Cochrane Library databases was conducted to identify randomized-controlled trials comparing the effects of dexmedetomidine-enhanced shoulder arthroscopy nerve blocks against those without dexmedetomidine. This systematic review and meta-analysis followed the PRISMA guidelines. The Cochrane-recommended risk of bias tool was employed for quality and bias assessment. Statistical analysis, utilizing Review Manager 5.4 with a significance level of P < 0.05, focused on primary outcomes: duration of analgesia and postoperative 24 h morphine consumption, and secondary outcomes: motor and sensory block duration, visual analog scale pain scores and adverse events.</p><p><strong>Results: </strong>Out of 307 articles retrieved, ten randomized-controlled trials involving 672 patients were included. Dexmedetomidine supplementation significantly prolonged the duration of analgesia (MD = 3.58, 95% CI: 2.53- 4.63, P < 0.00001, I 2 = 77%) and decreased postoperative morphine consumption (MD = -11.88, 95% CI: -17.25 to -6.52, P < 0.0001, I 2 = 41%). In addition, the dexmedetomidine group exhibited lower VAS pain scores at 1, 12 and 24 h postoperatively. No significant differences were observed in motor block duration, bradycardia (P = 0.18), hypotension (P = 0.50) and nausea and vomiting (P = 0.76). Sensitivity analyses validated the robustness of these findings.</p><p><strong>Conclusions: </strong>This meta-analysis supports dexmedetomidine as an effective adjuvant in nerve blocks for shoulder arthroscopy. It enhances postoperative analgesia without increasing adverse events such as bradycardia, hypotension and nausea and vomiting.</p>","PeriodicalId":48598,"journal":{"name":"Efort Open Reviews","volume":"10 7","pages":"510-519"},"PeriodicalIF":4.3000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Efort Open Reviews","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1530/EOR-2024-0069","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ORTHOPEDICS","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: Dexmedetomidine is a widely employed adjunct in nerve block anesthesia for shoulder arthroscopy. This study aimed to assess the analgesic efficacy of dexmedetomidine as a nerve block adjuvant in patients undergoing shoulder arthroscopy.
Methods: A thorough search of PubMed/MEDLINE, Embase, Web of Science and the Cochrane Library databases was conducted to identify randomized-controlled trials comparing the effects of dexmedetomidine-enhanced shoulder arthroscopy nerve blocks against those without dexmedetomidine. This systematic review and meta-analysis followed the PRISMA guidelines. The Cochrane-recommended risk of bias tool was employed for quality and bias assessment. Statistical analysis, utilizing Review Manager 5.4 with a significance level of P < 0.05, focused on primary outcomes: duration of analgesia and postoperative 24 h morphine consumption, and secondary outcomes: motor and sensory block duration, visual analog scale pain scores and adverse events.
Results: Out of 307 articles retrieved, ten randomized-controlled trials involving 672 patients were included. Dexmedetomidine supplementation significantly prolonged the duration of analgesia (MD = 3.58, 95% CI: 2.53- 4.63, P < 0.00001, I 2 = 77%) and decreased postoperative morphine consumption (MD = -11.88, 95% CI: -17.25 to -6.52, P < 0.0001, I 2 = 41%). In addition, the dexmedetomidine group exhibited lower VAS pain scores at 1, 12 and 24 h postoperatively. No significant differences were observed in motor block duration, bradycardia (P = 0.18), hypotension (P = 0.50) and nausea and vomiting (P = 0.76). Sensitivity analyses validated the robustness of these findings.
Conclusions: This meta-analysis supports dexmedetomidine as an effective adjuvant in nerve blocks for shoulder arthroscopy. It enhances postoperative analgesia without increasing adverse events such as bradycardia, hypotension and nausea and vomiting.
期刊介绍:
EFORT Open Reviews publishes high-quality instructional review articles across the whole field of orthopaedics and traumatology. Commissioned, peer-reviewed articles from international experts summarize current knowledge and practice in orthopaedics, with the aim of providing systematic coverage of the field. All articles undergo rigorous scientific editing to ensure the highest standards of accuracy and clarity.
This continuously published online journal is fully open access and will provide integrated CME. It is an authoritative resource for educating trainees and supports practising orthopaedic surgeons in keeping informed about the latest clinical and scientific advances.
One print issue containing a selection of papers from the journal will be published each year to coincide with the EFORT Annual Congress.
EFORT Open Reviews is the official journal of the European Federation of National Associations of Orthopaedics and Traumatology (EFORT) and is published in partnership with The British Editorial Society of Bone & Joint Surgery.