Effect of time of induced labour of delayed pregnancy on maternal and neonatal outcomes

Objective: To investigate the effect of induced labour time for delayed pregnancy on maternal and neonatal outcomes.Methods: One hundred and seventy-two pregnant women from 41 to 41+ 6 weeks without any complications who delivered in our hospital from June 2008 to June 2012 were selected as the experimental group;and then the experimental group was divided into two groups based on the time of induced labor;the first group included 90 pregnant women(41 weeks of gestation) and the second group included 82 pregnant women(41+ 4 weeks of gestation).Ninety-two pregnant women who delivered naturally at the same term were selected as control group.The study retrospectively analyzed the success rate of induced labor,model of delivery,postpartum complications and neonatal asphyxia between experimental and control group and between two experimental groups.Results: The success rate of induced labor of the first experimental group was lower than that of the second experimental group and the differences were significant statistically(P 0.05).The rates of cesarean section and meconium-stained amniotic fluid grade Ⅲ of the first experimental group were higher than those of the second experimental group and the differences were significant statistically(P 0.05).The rates of cesarean section and meconium-stained amniotic fluid grade Ⅲ of the experimental group were higher than those of the control group and the differences were significant statistically(P 0.05).The amount of postpartum haemorrhage and puerperal morbidity,precipitate labor,birth injury,fetal distress,neonatal asphyxia between the experimental group and control group and between the two experimental groups were not different significantly(P 0.05).Conclusion: For delayed pregnancy with no complications,it does not need to induce actively and prematurely and natural labor can be waited with careful monitoring on fetus.If pregnant women still don't deliver after 41 + 4 weeks,cervical ripening and labor induction could be a possible solution.