Overview: Congenital coronary heart defects (CHDs) are the most common form of birth defect. As clinical care and treatment have progressed, babies with a CHD are living longer and better lives. CHDs are present at birth and might affect the structure of a infant’s heart and the manner it really works. They could affect how blood flows thru the heart and out to the rest of the body. CHDs can range from slight to intense. Approximately 1 in 4 children...