Document Classification

Section Type: METHODS

Text: Eighty children, aged between 2 and 8 yr, undergoing inguinal herniotomy were randomly allocated to receive bupivacaine 0. 25 % 0. 75 ml kg (-1) (Group B ; n = 20), bupivacaine 0. 25 % 0. 75 ml kg (-1) with tramadol 1 mg kg (-1) (Group BT1 ; n = 20), bupivacaine 0. 25 % 0. 75 ml kg (-1) with tramadol 1. 5 mg kg (-1) (Group BT1. 5 ; n = 20), or bupivacaine 0. 25 % 0. 75 ml kg (-1) with tramadol 2 mg kg (-1) (Group BT2 ; n = 20) by the caudal route immediately after induction of general anaesthesia.