Coronary artery disease is caused by plaque buildup in the wall of the arteries that supply blood to the heart (called coronary arteries).
Plaque is made up of cholesterol deposits.
The term "congenital" means the condition is present from birth.
the heart can't effectively pump blood throughout the body and has to work harder to pump, either while the blood is leaking back into the chamber or against a narrowed opening.
Cardiomyopathyis a disease of the heart muscle that makes it harder for the heart to pump blood to the rest of the body