Dr. Ram Subramanyan provides additional background on congenital heart defects in this video. Watch as he discusses how defects in the heart can occur while a baby is developing in the mother's womb.
Much more rarely, children have acquired heart disease, that is, they were not born with heart disease; but they acquired it after birth. These diseases include inflammatory heart disease such as rheumatic heart disease that occurs after rheumatic fever or infectious heart disease, such as endocarditis or trauma to the heart (cardiac trauma).
The operations used to treat acquired heart disease in children are similar to those used to treat CHD.