Postoperative analgesia after circumcision. A randomized comparison between caudal analgesia and intramuscular morphine in boys

Abstract

A randomised blind comparison between caudal analgesia (1.5 mg/kg bupivacaine) and intramuscular morphine (0.15 mg/kg) is reported. Forty boys were studied. Caudal analgesia is shown to be significantly better than morphine by means of a linear analogue scale designed to quantify behaviour immediately after operation.