我们将芬太尼及氯胺酮与低浓度布比卡因配伍,持续硬膜外腔给药用于分娩镇痛,探讨其镇痛效果及对母婴影响。资料与方法一般资料　选择年龄20～30岁、足月、初产、单胎头先露、胎儿情况正常和自愿接受分娩镇痛产妇30例为Ⅰ组,即观察组。另选择同等条件未要求分娩镇痛产妇30例为Ⅱ We will fentanyl and ketamine and low concentrations of bupivacaine compatibility, continuous epidural administration for labor analgesia, to explore the analgesic effect and the impact on mothers and children. Materials and Methods General information Select the age of 20 to 30 years old, full-term, primiparous, single-fetal first exposed, fetal normal and voluntary delivery of labor analgesia 30 women for the group Ⅰ, the observation group. Another choice of the same conditions did not require maternal labor analgesia 30 cases of Ⅱ