Clinical features of vaginal trial delivery in twin pregnancy and factors related with failure

To investigate the case characteristics and factors related with failure of vaginal trial delivery in twin pregnancy. A retrospective analysis was performed on the clinical data of patients with twin pregnancy who underwent vaginal trial delivery in Peking University Third Hospital from January 2016 to June 2021. There were 109 cases in the successful group (vaginal delivery of both fetuses) and 28 cases in the failed group (cesarean delivery of one or all fetuses), the differences between the two groups were compared and the related factors of vaginal trial failure in twin pregnancy were analyzed. There was no significant difference in age between the two groups[(32.4±3.8) years vs (31.3±3.3) years, =0.163].The proportion of conception through assisted reproductive technology and induced labor in the successful group was significantly lower than that in the failed group(36.7% vs 60.7%,