one hundred and twenty patients were randomly divided into three groups and received a 10-ml extradural injection of sufentanil 15 micrograms + bupivacaine 12.5 mg + adrenaline 12.5 micrograms , sufentanil 7.5 micrograms + bupivacaine 12.5 mg + adrenaline 12.5 micrograms , or bupivacaine 12.5 mg + adrenaline 12.5 micrograms ( control group ) .
C0014563
adrenaline
C0359953
bupivacaine