摘要目的 探讨早产的常见原因和保胎的效果.方法 选择入院时28～34周所有孕产妇,共150例,系统回顾其早产的常见诱因及保胎后延长孕周的时间、保胎成功率、早产儿出生时的情况.结果 胎膜早破所致先兆早产者60例,占40%,自发宫缩所致先兆早产42例,占28%,医源性早产36例,占24%.初产妇94例,占63%.保胎延长天数超过7 d者胎膜早破3.3%,自发性宫缩4.8%.结论 做好孕期卫生保健工作,加强产前检查对降低早产率有重要意义,保胎过程尽早运用地塞米松促胎肺成熟治疗以免延误治疗时机.

abstractsObjective To investigate the eomman causes of premature delivery,the tocolytic effect and suc-cess ratio and the birth situation of premature infants. Methods 150 pregnant women with natural delivery or iatro-genie preterm labor from 28 weeks to 34 weeks who carried out tocolytic therapy because of threatened preterm labor or premature delivery after tocolytic therapy were selected. The common inducement of premature delivery, the pro-longed gestational weeks, the success ratio of tocolyis and the birth situation of premature infants were retrospectively analyzed. Results The premature rupture of membranes(PROM) ,the spontaneous uterine contraction and iatrogenic preterm labor were the main reasons of premature labor. The primiparas are the majority. The iatrogenic partus pre-maturus were prolonged, the asphyxia rate of premature infants was still high. The incidence of premature rupture of fe-tal menbranes in pregnant with tocolytic therapy beyond 1 week was 3. 3% ,and the incidence of spontaneous urerine contraction was 4. 8%. Conclusion Antenatal care and prenatal diagnosis are important to decrease the premature labor ratio as early as possible to use the D. X. M to promote the fetal lung maturity, so as not to delay the treatment.