ABSTRACT
The effect of age, operative site and addition of 1: 200,000 adrenaline to bupivacaine was evaluated on the duration of post operative analgesia after caudal block in 200 children between the age group of 1 year to 14 years. Anaesthesia was induced and maintained on Halothan/N2O/O2• After this caudal block was performed with 0.5 ml/kg of 0.25% bupivacaine in one group of 100 Children and with 0.25% bupivacaine with adrenaline 1 : 200,000 in another 100 children. The duration of post operative analgesia was noted to be significantly longer in young children, in children having penoscrotal operations and when adrenaline was added to bupivacaine. Conclusion was drawn that duration of post-operative analgesia depended upon age, site and addition of adrenaline to bupivacaine.