Document Classification

Section Type: METHODS

Text: 75 ASA I-II patients undergoing hysterectomy who were matched in age, weight, and duration of surgical procedure, were randomly allocated to one of the three treatment groups, 25 in each : group I receiving epidural saline as control, group II receiving epidural 2 % lidocaine 10 ml combined with 2. 5 microg/ml of fentanyl 30 minutes before skin incision followed by 0. 125 % ropivacaine and 2 microg/ml fentanyl infusion at 9ml/h to the end of surgery, and group III receiving epidural 2 % lidocaine 10 ml combined with 2. 5 microg/ml of fentanyl and 0. 15 mg/ml of droperidol 30 min before incision followed by 0. 125 % ropivacaine and 2 microg/ml fentanyl infusion at 9ml/h to the end of surgery.