TAXA DE SUCESSO NA OBTENÇÃO DO PARTO VIA VAGINAL EM MULHERES SOB PROTOCOLO DE INDUÇÃO EM HOSPITAL TERCIÁRIO

Abstract

Objective: Objective: To investigate the success rate of vaginal delivery in women undergoing labor induction at a hospital, also identifying factors associated with success. Methods: This was an observational, individual, cross-sectional, and retrospective study conducted at the maternity ward of the Lauro Wanderley University Hospital, including women over 17 years old with a single intrauterine pregnancy, who underwent induction between 34 weeks and 41 weeks and 6 days, from February 2023 to February 2024. The success rate was calculated by the ratio of vaginal deliveries to all induced births, with success defined as achieving a vaginal delivery after induction. The association between categorical factors was verified using appropriate statistical tests based on the data distribution. Results: The success rate found was 53.7%. The only factor associated with the primary outcome was the history of previous vaginal deliveries (p < 0,001). An interval of 6 hours or less between the administration of misoprostol tablets was associated with a higher rate of vaginal delivery (p = 0,033), while an interval longer than 6 hours was associated with a higher cesarean section rate. Conclusions: The success rate of vaginal delivery after induction at the studied maternity ward was lower than that found in other studies. Among the factors influencing this success are a history of previous vaginal delivery and the interval between misoprostol tablet administration, with an interval of 6 hours or less. It is essential to conduct further methodologically appropriate studies to test these hypotheses.