Accuracy and impact of prenatal diagnosis of common arterial trunk.

The accuracy of prenatal diagnosis of CAT is insufficient to tailor neonatal management and to predict outcome. Fetal assessment of truncal valve dysfunction appears unreliable due to perinatal transition. Improvement is necessary in the fetal diagnosis of anatomic subtypes of CAT requiring postnatal prostaglandin infusion. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.