Antenatal Prediction of Shoulder Dystocia and Birth Trauma Using Routine Maternal and Ultrasound Variables: Retrospective Cohort Study

The authors aimed to develop antenatal prediction models for shoulder dystocia and birth trauma using routinely collected maternal and ultrasound data. Their retrospective cohort study found that models incorporating maternal characteristics and fetal abdominal circumference (AC) centile provided better discrimination than current estimated fetal weight (EFW) thresholds, suggesting these models could aid in risk stratification and counseling for pregnancies at increased risk of delivery-related complications. Despite modest discrimination, the findings may inform future interventions targeting high-risk pregnancies.