Relationship between AOP,HPD during delivery incubation period and duration of labor stages,and their predictive value for delivery modes in primipara
Aim To explore the relationship between angle of progression(AOP)and head-perineum distance(HPD)dur-ing delivery incubation period and duration of labor stages,and their predictive value for delivery modes in primipara.Methods A total of 117 primiparas were enrolled.According to the final delivery modes,they were divided into vaginal delivery group(n=94)and cesarean section group(n=23).AOP and HPD were measured by ultrasound during delivery incubation period.The predictive efficiency of AOP and HPD for delivery modes was analyzed by ROC.The relationship between duration of second labor stage and AOP and HPD in vaginal delivery group was analyzed by Pearson correlation analysis.Results AOP in vaginal delivery group was higher than that in cesarean section group,while HPD was lower than that in cesarean section group(P＜0.05).ROC curves analysis showed that AOP combined with HPD was of good predictive efficiency for delivery modes(P＜0.001).The duration of second labor stage was positively correlated with AOP,while negatively correlated with HPD(P＜0.05).Conclusion AOP and HPD during delivery incubation period are correlated with duration of labor stages in primiparas,which have high predictive value for delivery modes.
delivery incubation periodAOPHPDprimiparadelivery modeduration of labor stage
万方数据
维普
