Video 17.5 Prenatal evaluation in fetus with pulmonary atresia with intact ventricular septum and RV dilation
Prenatal evaluation in fetus with pulmonary atresia with intact ventricular septum and RV dilation. This fetus has dilation of the RV and a severely dysplastic tricuspid valve; note that the heart is “ wall to wall.” The cardiac silhouette reaches from one ribcage to the other and there is diminished room for the lung tissue. The right atrium is much larger than the left atrium due to the tricuspid regurgitation, leading to left atrial compression.