A congenital heart defect is a problem with the structure of the heart. It is present at birth. Congenital heart defects are the most common type of birth defect. The defects can involve the walls of the heart, the valves of the heart, and the arteries and veins near the heart. They can disrupt the normal flow of blood through the heart. The blood flow can slow down, go in the wrong direction or to the wrong place, or be blocked completely.
Many congenital heart defects cause few or no signs and symptoms. They are often not diagnosed until children are older. Congenital heart disease is often first detected when your doctor hears an abnormal heart sound or heart murmur when listening to your heart.
Journal of Clinical & Experimental Cardiology also have a Special issue entitled: "Congenital Heart Disease- Recent Discoveries and Innovations", edited by Dr. Georg Hansmann.