Arteriovenous fistulas of the placenta rarely occur in singleton pregnancies. This report describes the fetal and neonatal hemodynamic pattern in a singleton gestation in which multiple placental artery-to-vein anastomoses were associated with a large atrial septal defect and a single umbilical artery with an anomalous connection of the persistent right and left umbilical veins. Possible links between the extracardiac vascular malformation and the congenital heart defect are discussed.
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| http://dx.doi.org/10.1046/j.1469-0705.1998.12020132.x | DOI Listing |
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