<unk>  <unk>  or<unk>  canal defect (AVCD), also known as "common<unk>  canal" (CAVC) or "endocardial cushion defect" (ECD), is characterized by a deficiency of the<unk>  septum of the heart. It is caused by an abnormal or inadequate fusion of the superior and inferior endocardial cushions with the mid portion of the atrial septum and the muscular portion of the ventricular septum.
Atrioventricular septal defect
Atrial septal defect
Ventricular septal defect
Double inlet left ventricle
Persistent truncus arteriosus
Heart septal defect
Sinus venosus atrial septal defect
Tricuspid atresia