Atrial septal defect: anatomoechocardiographic correlation.

This study was undertaken to enhance understanding of the anatomic abnormalities involved in atrial septal defect (ASD) based on the anatomoechocardiographic comparison of equivalent specimens of ASD and the echocardiograms of patients with this anomaly. Of the 72 heart specimens, two had common atrioventricular canal (2.8%) and one had absence of right atrioventricular connection (1.