• J A Thorp, D H Hu, R M Albin, J McNitt, B A Meyer, G R Cohen, and J D Yeast.
• Department of Obstetrics and Gynecology, St. Luke's Hospital, Kansas City, MO.
• Am. J. Obstet. Gynecol. 1993 Oct 1;169(4):851-8.

ObjectiveOur purpose was to determine the effect of epidural analgesia on nulliparous labor and delivery.Study DesignNormal term nulliparous women in early spontaneous labor were randomized to receive either narcotic or epidural analgesia.ResultsWhen compared with the group receiving narcotic analgesia (n = 45), the group receiving epidural analgesia (n = 48) had a significant prolongation in the first and second stages of labor, an increased requirement for oxytocin augmentation, and a significant slowing in the rate of cervical dilatation. Epidural analgesia was associated with a significant increase in malposition (4.4% vs 18.8%, p < 0.05). Cesarean delivery occurred more frequently in the epidural group (2.2% vs 25%, p < 0.05), primarily related to an increase in cesarean section for dystocia (2.2% vs 16.7%, p < 0.05).ConclusionsIn a randomized, controlled, prospective trial epidural analgesia resulted in a significant prolongation in the first and second stages of labor and a significant increase in the frequency of cesarean delivery, primarily related to dystocia.

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