Utility of serial fetal echocardiograms in detecting <i>in‐utero</i> changes for single‐ventricle lesions: an 11‐year experience

In fetuses with single-ventricle lesions, there was a low rate of in-utero cardiac changes that led to alterations in perinatal management. However, fetuses with HLHS were most likely to develop critical changes affecting delivery-room management, often in the form of atrial-level restriction and/or evolving hydrops. It is important to consider these factors when considering the timing of visits for families who face a prenatal diagnosis of a single-ventricle lesion. © 2025 International Society of Ultrasound in Obstetrics and Gynecology.