Caudal epidural anesthesia employing 1.5% lidocaine 15 ml with epinephrine was administered to 40 patients scheduled for perianal surgery at Kyungpook National University Hospital. The patients were divided into 4 groups of 10: control group received lidocaine alone, group I lidocaine with morphine 1 mg, group II lidocaine with morphine 2mg and group III lidocaine with morphine 3mg. The duration of postoperative analgesia, number of pethidine injection and incidence of side effect were checked and compared. The results were as follows. The duration of postoperative analgesia in group I, II and III increased gradually, but showed no significant differences between control and morphine injection groups. The number of pethidine injection decreased significantly in group I, II and III compared with control group (p<0.05). We observed similar cases of nausea, vomiting and urinary retention in 4 groups, 2 cases of pruritis in group III and no case of respiratory depression in all groups.
Analgesia ; Anesthesia, Epidural ; Epinephrine ; Gyeongsangbuk-do ; Humans ; Incidence ; Lidocaine ; Meperidine ; Morphine* ; Nausea ; Pruritus ; Respiratory Insufficiency ; Urinary Retention ; Vomiting