Abstract:Objective To explore the application value of complete uterine bundle suture at cesarean section in pregnant women with placenta previa.Methods Fiftysix pregnant women with placenta previa receiving lower uterine cesarean section from January 2017 to January 2018 were randomly divided into control group and observation group (n=28,each).The lower uterine cesarean section combined with classic BLynch suture was performed in control group,and the lower uterine cesarean section combined with complete uterine bundle suture was conducted in observation group.The incidence of postoperative complications,uterine involution,menstrual recovery and sex hormone levels were compared between two groups.Results The effective rate in observation group was significantly higher than that in control group (100.00% vs 71.43%,χ2=7.146,P=0.008).Compared with control group,the operation time,intraoperative blood loss,postoperative 2 and 24h blood loss and the incidence of postpartum hemorrhage significantly decreased in observation group (P<0.05,P<0.01).No serious complications occurred in both groups.There were no significant differences in the levels of luteinizing hormone,follicle stimulating hormone and estradiol between two groups (P>0.05).Oneyear followup results showed that the patients had recovered the normal menstruation in two groups,and there were no significant differences in menstrual recovery time,menstrual volume and menstrual cycle (P>0.05).Conclusion The complete uterine bundle suture can reduce the incidence of postpartum hemorrhage after cesarean section safely and effectively in pregnant women with placenta previa.