摘要
Abstract
Objective:To explore the safety and effectiveness of cervical expansion balloon in trial of labor after cesarean delivery(TOLAC),and to improve the success rate of vaginal birth.Methods:Fifty cases of pregnant women at third trimester with scar uterus in our hospital from July 2015 to March 2016 were chosen as observation group,all patients had indications for labor induction,vaginal delivery intention and conditions.Simultaneously,50 cases of pregnant women at third trimester with normal uterus were selected as control group.Cervical expansion balloons were used in the two groups to promote cervical ripening.The effective rates of cervical ripening,the outcomes of delivery and the incidences of adverse outcomes were compared between two group.Results:The effective rate of cervical ripening was 66％ in observation group and 76％ in the control group,the difference was not statistically significant(P＞0.05).The success rate of induced labor of cervical ripening was 76％ in observation group and 84％ in the control group,the difference was not statistically significant (P＞0.05).There were no significant differences in the time of birth process,postpartum hemorrhage,birth immediate Apgar score and vaginal delivery rate between two groups (P ＞ 0.05).Although there were 1 case of incomplete uterine rupture occurred in the observation group,there were no statistically significant difference in the incidence rate of acute chorioamnionitis,cervical laceration(P＞0.05).Though there were 1 case of neonatal mild asphyxia in the observation group,the difference was not statistically significant (P ＞ 0.05).There were no postpartum hemorrhage cases in both observation group and control group.Conclusion:Under the premise of strictly follow the indications,cervical expansion balloon be used in promoting cervical ripening at third trimester of TOLAC,can increase the success rate of vaginal birth,decrease the rate of repeat cesarean section(RCS) and not increasing the incidence of adverse maternal and fetal outcomes.关键词
瘢痕子宫/宫颈扩张球囊/促宫颈成熟/引产Key words
scar uterus/cervical expansion balloon/cervical ripening/induced labor分类
医药卫生
