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目的：研究产时干预即在产妇宫口扩张３ ｃｍ 时给予人工破膜同时静推安定注射液１０ ｍ ｇ 对母亲和胎儿及新生儿的影响。方法：对产时无明显头盆不称的１００ 例初产妇进行产时干预。并将其活跃期、总产程时间、产后出血量、胎儿宫内窘迫及新生儿窒息情况加以统计，与对照组相比较。结果：产时干预组其活跃期和总产程明显缩短（ Ｐ均＜ ０．０１），而且胎儿宫内窘迫和新生儿窒息的发生率比对照组明显降低。结论：产时干预是缩短产程，减少胎窘及新生儿室息的有效措施。
OBJECTIVE: To study the effect of labor-time intervention, ie manual administration of artificial rupture of membrane at the time of maternal cervix expansion of 3 cm, on the mothers and fetus and newborn during the period of 10 m g. Methods: 100 cases of primipara without obsessive tibia were intervened during labor. And the active period, the total production process, the amount of postpartum hemorrhage, fetal distress and neonatal asphyxia statistics were compared with the control group. Results: The labor-time and total labor duration were significantly shorter in the labor-producing intervention group (all P <0.01), and the incidence of fetal distress and neonatal asphyxia were significantly lower than those in the control group. Conclusion: The labor-time intervention is an effective measure to shorten the labor process, reduce the fetal distress and neonatal residential interest.