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Original Article

Korean J Pain 2001; 14(2): 171-175

Published online December 30, 2001

Copyright © The Korean Pain Society.

Comparison of Differential Analgesic and Adverse Effects of 0.125% and 0.15% Ropivacaine Coadministrated Epidurally with Fentanyl

Hyeon Jeong Yang, M.D., and Sang Woo Lee, M.D.

Department of Anesthesiology, College of Medicine, Pocheon Jungmun University, Seongnam, Korea

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background: This purpose of this study is to compare the analgesic efficacy, occurrence of motor block and other side effects of 48 hr continuous postoperative epidural infusions with 0.125% ropivacaine with fentanyl or 0.15% ropivacaine with fentanyl.

Methods: Forty patients undergoing Cesarean section were randomly allocated into two groups. Both groups received epidural injection of 2.0% lidocaine 19 ml and 0.75% ropivacaine 2⁣5 ml with fentanyl 50μg for 20 minutes before surgery. Following surgery, a continuous epidural infusion using a two- day infusor was given for 40 minutes for post-operative pain control. Group 1 (n = 20) then received 0.125% ropivacaine and 6 ug/ml of fentanyl at a rate of 2 ml/h. Group 2 (n = 20) received 0.15% ropivacaine and 6 ug/ml of fentanyl at the same rate. Visual analog scales (VAS) for pain during rest and movement, sensory change and motor blockade were assessed for 48 hr after surgery.

Results: There were no significant differences in VAS for pain during rest or movement. The incidence of side effects was similar in both groups.

Conclusions: Using 0.125% ropivacaine with fentanyl via an epidural route provided similar pain relief and side effects as 0.15% ropivacaine with fentanyl.

Keywords: Analgesia, Anesthetics, Epidural, Pain, Postoperative, Ropivacaine