Analysis of Influencing Factors and Predictive Value of Vaginal Delivery in Scarred Uterus Re-Pregnancy
Objective:To investigate the influencing factors and predictive value of vaginal delivery in scarred uterus re-pregnancy.Methods:A retrospective study was conducted on 109 pregnant women with scarred uterus re-pregnancy who were admitted to the First People's Hospital of Bengbu from January 2021 to June 2023.According to the delivery outcome,they were divided into two groups:vaginal delivery success group(n=78)and failure group(n=31).The baseline data and late pregnancy myometrial thickness of the pregnant women in the two groups were compared.Logistic regression analysis was used to analyze the influen-cing factors of vaginal delivery in scarred uterus re-pregnancy,and the receiver operating characteristic(ROC)curve was used to analyze the predictive value of the influencing factors for vaginal delivery in scarred uterus re-pregnancy.Results:There was no significant difference in age,gestational week,parity,interval from previous cesarean section,estimated fetal weight before delivery,admission in labor,and education level between the two groups(P>0.05).The pre-pregnancy body mass index(BMI),cervical Bishop score,and myometrial thickness were significantly different between the two groups(P<0.05).Logistic regression analy-sis showed that pre-pregnancy BMI,cervical Bishop score,and myometrial thickness were the influencing fac-tors of delivery outcome in scarred uterus re-pregnancy(P<0.05).The ROC curve analysis showed that the areas under the curve(AUC)of pre-pregnancy BMI,cervical Bishop score,and myometrial thickness for predicting vaginal delivery in scarred uterus re-pregnancy were 0.669,0.691,and 0.670,respectively.The AUC of the combined prediction of the three indicators was 0.806,which was significantly higher than that of the single indicators(Z=2.885,3.604,3.296,P=0.004,<0.001,0.001).The sensitivity was 90.32%,and the specificity was 61.54%.Conclusion:Pre-pregnancy BMI,cervical Bishop score,and myometrial thickness are the influencing factors of vaginal delivery outcome in scarred uterus re-pregnancy and can be used as predictive indicators of vaginal delivery outcome.
Scared uterusVaginal deliveryInfluencing factorPrenatal body mass indexMyometrial thickness