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Abstract Objective: To analyze the influencing factors of delivery model of pregnant women with history cesarean section, and to explore the value of prenatal examination for predicting delivery model. Methods: A retrospective analysis was conducted on 182 pregnant women with history cesarean section who had required trying vaginal delivery from February 2014 to March 2016, and they were divided into in the observation group (118 women with vaginal delivery) and in the control group (64 women with cesarean section again). The general clinical data, maternal and infant outcomes, and prenatal examination data of women in both groups were analyzed, and the value of prenatal examination for predicting delivery model was explored. Results: The rates of postpartum fever, reproductive tract infection and fetal distress of women in the observation group were significant lower than those of women in the control group (P<0.05). The time interval from last cesarean section to this pregnancy again, the degree of cervical dilatation, bishop score, the cervical length, the fetal weight measured by ultrasound, the situation of posterior horn of cervix of pregnant women with history cesarean section were related to their delivery model (P<0.05). The bishop score, cervical length, and fetal weight measured by ultrasound were the influencing factors of the delivery model of women (P<0.05). ROC curve analysis showed that bishop score, cervical length, and fetal weight measured by ultrasound of pregnant women were certain values for predicting the delivery model. When bishop score was 5.789, cervical length was 28.29mm, and fetal weight measured by ultrasound was 4.263kg, it was the critical value for trying transvaginal delivery. Conclusion: Bishop score, cervical length, and fetal weight are the influencing factors of the delivery model of pregnant women with history cesarean section, which have some values for predicting transvaginal delivery successfully, and it was worthy of clinical reference.
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