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目的:探讨延期妊娠的最佳引产时机。方法:分析我院2000～2004年之间接诊的孕37(含37周)～42周(含42周)孕妇2 116例的妊娠结局。结果:孕41～42周妊娠结局中新生儿窒息数,剖宫产数,巨大儿数均较孕37～41周有明显差异。结论:延期妊娠中随着时间的延长,胎盘功能逐渐老化,羊水逐渐减少,胎儿体重逐渐增大,胎儿宫内缺血缺氧,头盆不称的发生机会增高,应采取积极有效的措施在孕41周之前终止妊娠。
Objective: To explore the best induction of labor induction of delayed pregnancy. Methods: The pregnancy outcomes of 2 116 pregnant women between 37 and 42 weeks (including 42 weeks) who were admitted between 2000 and 2004 in our hospital were analyzed. Results: The number of neonatal asphyxia, cesarean section and macrosomia in gestational age ranged from 41 to 42 weeks were significantly different from those of 37 to 41 weeks. Conclusions: With the prolongation of pregnancy, placental function gradually degenerated, amniotic fluid gradually decreased, fetus weight gradually increased, fetal intrauterine ischemia and hypoxia, the incidence of headache is not high, should take positive and effective measures in the Pregnancy is terminated by 41 weeks of gestation.