Atrioventricular Septal Defect (AVSD)
What Is It?
Atrioventricular (AV) canal defect is a large hole in the center of the heart. It's located where the wall (septum) between the upper chambers (atria) joins the wall between the lower chambers (ventricles). This condition is also known as: Atrioventricular Canal Defect and Endocardial Cushon Defect.