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目的研究第二产程延长的危险因素,评价第二产程延长产妇的母儿预后情况。方法回顾性分析我院2004年1月~2006年6月所有孕妇的分娩情况,排除其中的异常胎位、多胎妊娠、择期剖宫产和经产妇,有3668例头位单胎妊娠的初产妇进入第二产程。分A组:第二产程少于或等于120 min,有3436例。B组:第二产程大于120 min,有232例。统计两组的资料并进行对比分析。结果A组阴道分娩率98.3%,B组阴道分娩率83.6%。B组的会阴裂伤、绒毛膜炎、产后出血和阴道手术助产率显著高于A组(P<0.001)。新生儿病率两组差异统计学意义。结论第二产程延长导致产妇病率明显增高。巨大儿、绒毛膜炎、催产素使用、引产等均是独立的第二产程延长的危险因素。
Objective To study the risk factors for prolongation of the second stage of labor and to evaluate the prognosis of maternal and secondary childbirth in the second stage of labor. Methods The clinical data of all pregnant women in our hospital from January 2004 to June 2006 were retrospectively analyzed. Excluding the abnormal fetuses, multiple pregnancies, elective cesarean section and maternal women, there were 3668 cases of single mothers with single-head pregnancies Second stage of labor. Group A: the second stage less than or equal to 120 min, there are 3436 cases. Group B: The second stage of labor was more than 120 minutes, 232 cases. Statistics of two groups of data and comparative analysis. Results A group of vaginal delivery rate was 98.3%, B group vaginal delivery rate of 83.6%. Perineal laceration, chorioamisis, postpartum hemorrhage and vaginal surgery were significantly higher in group B than in group A (P <0.001). Neonatal morbidity differences between the two groups were statistically significant. Conclusions The prolongation of the second stage of labor leads to a marked increase in maternal morbidity. Huge children, chorioamisitis, oxytocin use, induction of labor and so on are independent risk factors for prolonged second stage of labor.