the types of heart defects, the types of heart defects, 18 specific types of congenital heart defects Common Types of Heart Defects. – American Heart Association 18 types of congenital heart defects Common Congenital Heart Defects Transposition of the great arteries - TGA Transposition of the great arteries - TGA 18 different types of congenital heart defects Common Types of Heart Defects