“…Fifteen trials (605 patients) tested epinephrine added to epidural LAs for surgical anesthesia. Regimens were administrated as boluses in 14 trials, 21,23,26,34,38,49,50,53,58,61,65,72,79,81 and via a continuous infusion 76 LAs were bupivacaine (9 trials), lidocaine or ropivacaine (2 each), and chloroprocaine or levobupivacaine (1 each). Concentrations of epinephrine ranged from 2.5 to 5 µg•mL −1 .…”