Abstract
ObjectiveTo examine the association between vaginal delivery of a previous macrosomic neonate (birthweight (BW)≥ 4000) among non-diabetic women and the rate of shoulder dystocia (SD) in the subsequent pregnancy. Study designA historical prospective cohort study in a university affiliated medical center from 2005 to 2019. Women who had a singleton pregnancy and two consecutive deliveries in our medical center were included. Women with previous GDM, SD or cesarean delivery were excluded. Univariate analysis was followed by multivariate logistic regression. ResultsA total of 38,942 women were included. SD incidence among the subsequent pregnancies was 0.44 % (172 women). In univariate analysis women with previous delivery of large neonates: BW≥90th percentile for gestational age and BW ≥ 4000 g had higher risk for subsequent SD (odds ratio 2.69 [95 % confidence interval 1.89–3.84], p < 0.01 and 2.71 [1.66–4.44], p < 0.01, respectively). However, a backward stepwise multivariate logistic regression model adjusted for significant confounders for SD in the univariate analysis, showed that women with a previous delivery of macrosomic neonate ≥4000 g were not found to have higher or lower risk for SD in the subsequent delivery. ConclusionPrevious uneventful delivery of a macrosomic neonate to a non-diabetic mother should not be regarded as a risk factor for SD in the subsequent delivery.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call