Conclusion
By using a comparison of VAS scores and blood concentrations, those findings from this study indicated that in continuous SAPB, 0.2% ropivacaine had a similar analgesic effect as 0.375% ropivacaine and was safer. However, the safety of drug concentration still needs further study to be confirmed in larger study samples and using different concentrations. In conclusion, ropivacaine with continuous SAPB provides durable management of pain after thoracoscopic surgery as an alternative for multimodal analgesic strategies.