Abstract：Objective To investigate the risk factors of postpartum hemorrhage in caesarean section patients due to placenta previa.MethodsThe clinical data of 57 cases of placenta previa hospitalized in our hospital from March 2016 to July 2017 were retrospectively analyzed.according to whether postpartum hemorrhage occurred after cesarean section,the patients were divided into postpartum hemorrhage group and non postpartum hemorrhage group.The general clinical data and suspected risk factors of the two groups were collected,and the univariate and multivariate logistic regression analysis was used to explore the risk factors of postpartum hemorrhage after cesarean section of placenta previa.Results There were 17 cases of postpartum hemorrhage in 57 cases of placenta previa cesarean section,the incidence rate was 29.82%.There were statistically significant differences between the two groups in the delivery time,placenta previa attachment site,placenta previa type,prenatal hemorrhage,gestational age of the first prenatal hemorrhage and placenta accreta(P＜0.05).Multivariate analysis showed that placenta previa attached to the anterior wall,central placenta previa,prenatal hemorrhage,placenta implantation were the risk factors of postpartum hemorrhage in patients with placenta previa cesarean section.Conclusion There are many risk factors influencing on postpartum hemorrhage after cesarean section due in placenta previa.Targeted on the relevant risk factors,prevention and intervention should be given in order to reduce the incidence of cesarean section postpartum hemorrhage in placenta previa.
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