Objective To evaluate the effectiveness and safety of ropivacaine in spinal anesthesia.
Methods We searched PubMed (1999 to 2008), OVID (1999 to 2008), EBSCO (1999 to 2008), The Cochrane Library (2000 to 2008), and CNKI (1999 to 2008) databases to identify randomized controlled trials (RCTs) that compared ropivacaine and bupivacaine for spinal anesthesia. The quality of the included RCTs was evaluated by two reviewers independently, and meta-analysis was performed by RevMan 5.0 software.
Results Six RCTs were included. The methodological quality of them were all poor. Among the six RCTs, 215 patients received ropivacaine and 215 received bupivacaine. The results of meta-analyses showed that the motor-block time to complete block of ropivacaine was significantly shorter than that of bupivacaine (WMD=2.18 min, 95%CI 0.32 to 4.03, P=0.02). The motor-block time to complete recovery of ropivacaine was significantly shorter than that of bupivacaine for cesarean delivery in spinal anesthesia (SMD= – 1.82, 95%CI – 3.05 to – 0.59, P=0.004). The incidence rate of hypotension and bradycardia in spinal anestheisa with ropivacaine was lower than that with bupivacaine (OR=0.49, 95%CI 0.31 to 0.80, P=0.004; OR=0.40, 95%CI 0.03 to 4.99, P=0.47).
Conclusion Equivalent doses of ropivacaine and bupivacaine provide similar analgesia in spinal anesthesia for cesarean delivery. However, haemodynamics in spinal anesthesia with ropivacaine fluctuate lightlier than with bupivacaine. Ropivacaine is suitable for spinal anesthesia in low-abdominal operations.
Citation: LIU Zhihui,LV Huangwei,WANG Junke. Effectiveness and Safety of Ropivacaine and Bupivacaine in Spinal Anesthesia: A Meta-analysis. Chinese Journal of Evidence-Based Medicine, 2010, 10(5): 597-601. doi: 10.7507/1672-2531.20100455 Copy