Influencing factors of conversion to cesarean section after failure of vaginal trial delivery in full-term pregnant primiparas
Objective:To analyze influencing factors of conversion to cesarean section after failure of vaginal trial delivery in full-term pregnant primiparas.Methods:The clinical data of 158 primiparas who underwent vaginal trial delivery in the hospital from March 2019 to March 2022 were retrospectively analyzed.The incidence of cesarean section in the 158 primiparas was statistically analyzed.According to the different delivery outcomes,they were divided into cesarean section group and vaginal delivery group.Univariate analysis and multivariate logistic regression analysis were performed on the conversion to cesarean section after failure of vaginal trial delivery in the full-term pregnant primiparas.Results:Among the 158 primiparas,135 cases(85.44%)were vaginal delivery,and 23 cases(14.56%)were converted to cesarean section.There were no significant differences in the proportion of premature rupture of membranes,labor analgesia and amniotic fluid contamination between the two groups(P>0.05).There were statistically significant differences in age,height,pre-pregnancy BMI,weight gain during pregnancy,neonatal weight,duration of pregnancy,and induction of labor between the two groups(P<0.05).Logistic regression analysis showed that age,pre-pregnancy BMI,weight gain during pregnancy,duration of pregnancy,and induction of labor were all risk factors for conversion to cesarean section after failure of vaginal trial delivery in the full-term pregnant primiparas(OR>1,P<0.05),while height was a protective factor(OR<1,P<0.05).Conclusions:Age,pre-pregnancy BMI,weight gain during pregnancy,duration of pregnancy,and induction of labor are the risk factors for conversion to cesarean section after failure of vaginal trial delivery in the full-term pregnant primiparas(OR>1,P<0.05),while height is the protective factor.Clinically,preventive measures can be formulated for the above influencing factors,or the mode of delivery can be adjusted.
Full-term pregnancyPrimiparaVaginal trial deliveryConversion to cesarean sectionInfluencing factor