我科在腰-硬联合麻醉后将生理盐水注入硬膜外腔,观察其对CSEA麻醉的影响,现将结果分析总结如下。1资料与方法1.1一般资料患者60例,A SAⅠ~Ⅱ级,年龄20~40岁,体重50~85 kg,孕期38~42周,单胎初产孕妇。无心、肺、肾等并发症,无合并高危妊娠,随机均分为生理盐水观察组和对照组,每 Our department in the waist - hard anesthesia after injection of saline into the epidural space to observe its effects on CSEA anesthesia, the results are summarized as follows. 1 Materials and Methods 1.1 General Information 60 patients, A SA Ⅰ ~ Ⅱ grade, aged 20 to 40 years old, weighing 50 to 85 kg, 38 to 42 weeks of pregnancy, singleton primiparous women. No heart, lung, kidney and other complications, without high-risk pregnancy, were randomly divided into normal saline observation group and control group, each