The study group was composed of 90 primiparae requiring epidural labor analgesia without the contraindication of epidural block.
试验组90例，要求行硬膜外分娩镇痛（无椎管内阻滞禁忌证）；对照组90例，经产科常规进行分娩而不进行干预者。
参考来源 - 产妇的焦虑程度与硬膜外分娩镇痛及分娩疼痛的关系·2,447,543篇论文数据，部分数据来源于NoteExpress
硬膜外分娩镇痛不增加剖宫产率。
Epidural analgesia labor do not increase the rate of cesarean section.
目的探讨潜伏期硬膜外分娩镇痛的效果及对母婴的影响。
Objective To investigate the outcome of labor analgesia at latent phase and its influence on mothers and fetus.
目的：探讨连续硬膜外分娩镇痛对产程、分娩方式、催产素应用及母儿的影响。
Objective to evaluate the effects of epidural analgesia on the duration of labor, Mode of delivery, oxytocin administration and so on.
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