An atrioventricular canal is a congenital heart defect that connects chambers of your child’s heart that shouldn’t be connected. Atrioventricular canals usually require surgical treatment. It usually ...

An atrioventricular septal defect (AVSD) is a condition in which there is a hole between the chambers of the left and right sides of the heart. Additionally, the valves between the chambers may not ...

Incomplete development of the endocardial cushion and the atrioventricular septum is responsible for the development of AV canal defects. These defects range from primum atrial septum defects to ...

A key event in vertebrate heart development is the formation of a wall (septum) that divides the heart into left and right atria and ventricles — failure to do so is one of the main causes of ...

A congenital heart defect is a condition you’re born with. Types of heart defects vary in severity — with some, you’ll need surgery as a child, while others don’t need treatment until later in life or ...