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Meta Analysis
Intra-articular dexmedetomidine in knee arthroscopy: A systematic review and meta-analysis.
- Ke Peng, Wei-Rong Chen, Xiao-Wen Meng, Juan Zhang, and Fu-Hai Ji.
- Department of Anesthesiology, First Affiliated Hospital of Soochow University, Suzhou, China.
- Sci Rep. 2018 Mar 6; 8 (1): 4089.
AbstractThe aim of this meta-analysis is to evaluate the analgesic effects of intra-articular dexmedetomidine (DEX) in arthroscopic knee surgery. A comprehensive literature search was conducted to identify randomized controlled trials (RCTs) comparing intra-articular DEX versus control for postoperative analgesia in knee arthroscopy. Trial sequential analysis (TSA) was applied to determine the reliability of the evidence. Twelve RCTs including 594 patients met the eligibility criteria. DEX treatment significantly improved postoperative pain outcomes, with weighted mean differences (95% confidence interval) between the DEX and control groups of -1.57 (-1.94 to -1.20, P < 0.00001) for pain scores at rest at postoperative 1 h, -8.54 mg (-11.96 to -5.13, P < 0.00001) for morphine-equivalents at postoperative 0-24 h, and 257.57 min (209.86 to 305.28, P < 0.00001) for time to first request for postoperative analgesia. TSA indicated there is sufficient evidence for these outcomes. Intra-articular DEX did not affect the incidence of postoperative nausea and vomiting, hypotension, bradycardia, or somnolence. This meta-analysis demonstrated that intra-articular administration of DEX improved pain outcomes in the early postoperative period after knee arthroscopy. Due to the limited number of trials and patients included in this meta-analysis, more evidence is required to confirm these findings.
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