Definitions for "Congenital Heart Defect"
Keywords:  chd, birth, heart, defect, properly
Congenital means "existing at birth." Such a defect exists when something has gone wrong during the embryonic development of the heart. CHD affects 1% of all live births.
a birth defect involving the heart
a heart deformity present at birth, such as a hole between heart chambers or a narrowed valve