from Section 9 - Placental Complications
Published online by Cambridge University Press: 08 April 2025
Placenta previa is a common and potentially life-threatening complication of pregnancy. Transvaginal ultrasound is the best method for diagnosis, and delivery should be via cesarean delivery. Women with uncomplicated placenta previa should be delivered at 36–37 weeks. Antepartum bleeding is a common presentation, during which maternal stabilization is paramount, followed by a decision for delivery based on the maternal and fetal clinical statuses. Placenta previa is also a risk factor for placenta accreta syndrome and should be considered at time of delivery. Postpartum hemorrhage is also common in these deliveries, and various techniques can be employed to diminish the blood loss, including uterotonics, uterine artery embolization, intrauterine balloon, and hysterectomy. Proper identification of blood loss at every stage and proper utilization of blood products is essential to good outcomes.
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