等比重与轻比重布比卡因腰麻在剖宫产手术中的比较

A Comparision of Lumbar Anesthesia withNormobaric Bupivacaine in Cesarean Section

目的：比较等比重、轻比重腰麻在剖宫产手术中的麻醉特性方面的差异，从而证实等比重腰麻的可行性。方法：选择４０例按美国麻醉医学协会评级标准（ＡＳＡ）为Ⅰ级的剖宫产病人，随机分两组，分别为轻比重腰麻组（０．５％布比卡因２ｍｌ＋蒸镏水６ｍｌ）、等比重腰麻组（０．５％布比卡因２ｍｌ＋０．９％生理盐水６ｍｌ），分别记录最高镇痛平面及所需时间，胸１０镇痛平面维持时间及镇痛质量等级。结果：等比重与轻比重腰麻相比，等比重腰麻持续时间长，镇痛效果可靠。结论：在平卧位下，等比重腰麻质量可靠，可安全地用于剖宫产病人的麻醉。

Objective: To confirm the feasibility of normobaric spinal anestheria in cesarean section by comparing the differences between the normobaric and semibaric lumbar anesthesia. Methods: 40 ASAstage patients undergoing cesarean section were randomly divided into two groups in which the maximum analgesic plane,and the quality levels of analgesia. Results: The normobanic lumbar anesthesia presented a longer maintenance and a reliable analgesia,compared with the semibaric anesthesia. Conclusion: The normobaric lumbar anesthesia is reliable in a horizontal position and can safely be used in cesarean section.