ABSTRACT
PURPOSE: The analgesic efficacy and side-effects of continuous intravenous infusion of Butorphanol for postoperative pain relief after evisceration were evaluated. METHODS: We evaluated the postoperative pain using Numerical Rating Scale in 19patients undergoing evisceration under general anesthesia. One group (group2, 9patients) received continuous intravenous injection of Butorphanol 14 mg mixed with 5% D/W 100ml using silicone balloon infuser for 2days. The other group (group1, 10patients) was not received it. RESULTS: The second group patients reported less pain compared to the first group patients in the first and second post operative day. The total NRS value of pain was 28.1+/-4.73 (group1) vs 11.22+/-0.99 (group2). CONCLUSIONS: For 48hr post operative pain relief in patients undergoing evisceration, the analgesic efficacy of the continuous intravenous injection of Butorphanol is useful.