Fig. 5From: Optimal dose of perineural dexmedetomidine to prolong analgesia after brachial plexus blockade: a systematic review and Meta-analysis of 57 randomized clinical trialsEffect of perineural DEX by dose administered (≤60 μg or>60 μg) on bradycardia when combined with long-acting LA. Abbreviations: DEX, dexmedetomidine; CI, confidence interval; LA, local anesthetic; IV, intravenousBack to article page