International Journal of Clinical Research. 2019; 3: (1) 2; DOI: 10.12208/j.ijcr.20190002.
Objective: To investigate the risk factors of postpartum hemorrhage for uterine scar pregnancywith vaginal delivery and cesarean section.Methos:From January 2016 to January 2018,523 cases of pregnant women with scar uterus in our hospital wereselected and retrospectively analyzed.245 cases chose vaginal delivery and 278 cases chose cesarean section, and the volume of postpartum hemorrhage was measured by volumetric method and weighing method. Single factor analysis of risk factors of postpartum hemorrhage: comparing the incidence of postpartum hemorrhage in the vaginal delivery group and caesarean section group, the analysis was also made for the correlation between postpartum hemorrhage and age, application of uterine contraction agent, Placental adhesion, placenta previa, macrosomia, anemia, coagulation dysfunction and other factors.Multiple factors analysis of related factors of postpartum hemorrhage: The factors which showed significant influence on postpartum hemorrhage in single factor analysis wereconsidered as independent variables and postpartum hemorrhage was consideredas a dependent variable, and multivariate analysis of postpartum hemorrhage in two groups was made by logistic model.Results:The postpartum hemorrhage ratefor scar uteri with vaginal delivery was lower than that of cesarean section（P<0.05）, besides, advanced maternal age, placenta previa, giant baby, and coagulation dysfunction belonged tothe independent risk factors for postpartum hemorrhage of scar uteri（P<0.05）. Conclusion :Vaginal deliveryfor pregnant woman with scar uteriis practical. It is necessary to pay close attention to the age, the giant baby, the placenta previa, and the coagulation dysfunction before delivery, so as to make full preparation for the reduction of postpartum hemorrhage rate and have the smooth delivery.