Duration of Labor/Cesarean Delivery with Epidural Analgesia in Nullipara

我们与夏威夷特里普勒陆军医疗中心（Tripler Army Medical Center）的研究人员合作，提出了一项建议，旨在研究硬膜外镇痛对产妇产程和剖宫产率的影响。我们选择了两个时期：1992年10月至1993年9月没有硬膜外镇痛，1995年10月至1996年9月65%的分娩使用硬膜外镇痛。从医疗记录（每个时期约600名患者）中提取了有关产妇人口统计学特征、分娩过程和分娩镇痛的详细信息。我们已经完成了数据收集。在数据分析中，我们比较了这两个时期的分娩时间和剖宫产率。此外，我们还研究了硬膜外镇痛是否会增加枕后位和产妇热疗的发生率。我们将在2000年底前完成数据分析。

In collaboration with investigators at the Tripler Army Medical Center, Hawaii, we developed a proposal to examine the effects of epidural analgesia on the course of labor and cesarean delivery rate in nullipara. We selected two periods: from October 1992 to September 1993 when epidural analgesia was not available, and from October 1995 to Spetember 1996 when epidural analgesia was used in 65% of births. Detailed information on maternal demographic characteristics, course of labor and delivery, and labor analgesia were extracted from the medical records (about 600 patients in each period). We have completed data collection. In the data analysis, we compared the duration of labor and rates of cesarean delivery between these two periods. In addition, we examined whether epidural analgesia increases the incidence of occiput posterior position and maternal hyperthermia. We will finish the data analysis by the end of 2000.