Fig. 2
From: Effects of delta-opioid receptor agonist pretreatment on the cardiotoxicity of bupivacaine in rats
The bupivacaine threshold of different cardiotoxic endpoints: a arrhythmia; b 50% MAP-reduction; c 50% HR-reduction; d asystole. Differences were found between group NS and LE in the bupivacaine dose of 50% MAP-reduction, 50% HR-reduction, and asystole. Abbreviations: NS normal saline, LE lipid emulsion, BW BW373U86, the agonist of delta-opioid receptor, MAP mean arterial pressure, HR heart rate.*p < 0.05, **p < 0.01, ***p < 0.001