Factors Affecting Successful Vaginal Birth Following Dinoprostone Administration in Post-term Pregnancies

Abstract

136 Adverse perinatal outcomes increase gradually from the 40th week of pregnancy, and this increase is evident significantly from the 42nd week of pregnancy.1 With the prolongation of pregnancy, the risk of stillbirth increases, and 14% of stillbirth occur in prolonged pregnancies worldwide.2 The World Health Organization recommends inducing labor at week 41, and many countries induce labor from 41 to 42 weeks to prevent prolonged pregnancies.3,4 There are randomized controlled studies in the literature comparing the induction of labor with the expectant control group in the post-term pregnancies. In most of them, conflicting results were found in terms of perinatal morbidity and mortality. The Cochrane review in 2018 showed that the rate of cesarean delivery and perinatal mortality was lower, and the ratio of assisted vaginal delivery was higher in the induction group compared to the control group.5