A female singleton is delivered at 30 6/7 weeks’ gestational age via cesarean for preterm labor and breech presentation. The mother is a 37-year-old grand multipara in her 10th pregnancy. The pregnancy is notable for severe fetal anemia, high-output cardiac failure with normal cardiac anatomy, polyhydramnios, and a placental chorioangioma diagnosed at 26 weeks of gestation. Evaluation for congenital infections is negative. At 25 and 28 weeks’ gestation, the fetus had received in utero red blood cell transfusions for severe fetal anemia.

At birth, the infant has respiratory depression requiring intubation and ventilation. Apgar scores are 7, 6, and 8 at 1, 5, and 10 minutes, respectively, and her birthweight is 1,416 g. The neonate is noted to have a protuberant abdomen with significant hepatosplenomegaly, diffuse subcutaneous edema, petechiae, and ecchymoses.

The infant requires significant ventilator support for the first few weeks after birth. Chest radiography shows no evidence of...

You do not currently have access to this content.