Evaluation of Perineal Two-Dimensional Ultrasound Parameters for the Delivery Mode and Process of Primiparous Women
Objective To explore the evaluation value of perineal two-dimensional ultrasound parameters on the delivery mode and process of primiparous women.Methods The data of 162 primiparas who underwent vaginal trial delivery in Women and Infants Hospital of Zhengzhou from February 2021 to August 2023 were retrospectively analyzed.According to the maternal data,they were divided into natural delivery group and cesarean section group according to the delivery outcome.The transperineal two-dimensional ultrasound parameters[progress angle of labor(AOP),fetal head-perineum distance(HPD)]were compared between the two groups when the cervix dilated 6 cm,and the receiver operating characteristic(ROC)curve was drawn to test the predictive value of AOP and HPD on the delivery mode of primiparas.The medians of AOP and HPD were grouped to compare the differences in delivery mode and labor time of primiparas with different AOP and HPD.Pearson correlation analysis was used to test the relationship between AOP,HPD and labor time of primiparas with natural delivery.Results According to the data of 162 primiparous women,127 cases underwent natural delivery and 35 cases underwent cesarean section.The AOP and HPD of primiparous women in the natural delivery group were higher than those in the cesarean section group(P＜0.05).The ROC curve was drawn,and the area under curve(AUC)of AOP and HPD in predicting natural delivery of primipara was＞0.7,which had certain predictive value,and the combined predictive value of the two was the highest.The median AOP and HPD of 162 primiparous women were 132° and 4.1 cm,respectively.The natural delivery rates of primiparous women in the AOP≥132° and HPD ≥4.1 cm groups were higher than those in the AOP＜132° and HPD＜4.1 cm groups(P＜0.05).The median AOP and HPD of 127 primiparous women undergoing natural delivery were 133° and 4.3 cm,respectively.The first,second,and total stages of labor in the AOP≥133° and HPD≥4.3 cm groups were shorter than those in the AOP＜133° and HPD＜4.3 cm groups(P＜0.05).According to Pearson correlation test,AOP and HPD were negatively correlated with the first,second,and total stages of labor in natural childbirth primiparous women(r＜0,P＜0.05).Conclusion Perineal two-dimensional ultrasound parameters AOP and HPD can be used to guide the reasonable selection of delivery methods for primiparous women,which are related to the birth process and can provide reference for delivery management.
万方数据
维普
