An Minimally Invasive Valve Replacements and atrial septal defect (ASD) is a congenital heart defect where there is a hole in the atrial septum, the wall which separates the right and left atria. A small opening between the two atria (foramen ovale) is always present at birth but usually seals off shortly thereafter. If the natural opening persists, it is called patent foramen ovale, if the opening is bigger than that and involves a defect in the muscular septum, it is called ASD. Each year about 1,966 babies in the United States are born with an ASD. Girls are twice as often affected than boys.
The heart has four valves that control the flow of blood through the heart:
- The mitral valve
- The aortic valve
- The tricuspid valve
- The pulmonary valve
If one or more of these valves does not work properly, it may need to be surgically repaired or replaced with an artificial valve.
Most valve repair or replacement operations are performed on the aortic or mitral valve. These valves are located on the left side of the heart, which has to do more work than the right side to pump blood to the body.