Caudal anesthesia in children: effect of volume versus concentration of bupivacaine on blocking spermatic cord traction response during orchidopexy.

Unlabelled: In this study we compared the intensity and level of caudal blockade when two different volumes and concentrations of a fixed dose of bupivacaine were used. Fifty children, 1-6 yr old, undergoing unilateral orchidopexy received a caudal block with a fixed 2 mg/kg dose of bupivacaine immediately after the induction. Group 1 (n = 23) received 0.