Pulmonary atresia and ventricular septal defect: How accurate is the fetal echocardiography, and do the major aortopulmonary collateral arteries matter?

Pulmonary vascularization in PAVSD can be defined precisely on fetal echocardiography. The source of pulmonary blood supply does not impact postnatal short-term outcomes significantly but it impacts the management. The associated anomalies highly contribute to postnatal mortality.