Association between early amniotomy in labour induction and severe maternal and neonatal morbidity

Background Amniotomy is a commonly used, inexpensive method of labour induction; however, the optimal timing of amniotomy during labour induction is debated. Aims To investigate whether artificial rupture of membranes <4 cm dilation is associated with caesarean, severe maternal and neonatal morbidity, and labour induction duration. Materials and Methods Retrospective cohort study of 228 438 deliveries at 19 US hospitals. Women with a viable,...