目的：探讨硬膜外持续泵注新型长效酰胺类局麻药罗哌卡因的可行性。
ObjectiveTo explore the feasibility of epidural anesthesia with ropivacaine by computerized infusion pump.
目的：探讨新型酰胺类局麻药罗哌卡因用于剖宫产患者腰麻的量效关系。
Objective: To explore the dose-response relationship of ropivacaine in the spinal anesthesia of patients undergoing uterine-incision delivery.
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