Which of the following is NOT included in the list of critical congenital heart diseases for screening?

Marfan syndrome is primarily a connective tissue disorder rather than a congenital heart defect. While individuals with Marfan syndrome can have cardiac manifestations, such as aortic dilation or mitral valve prolapse, the condition itself is not classified as a critical congenital heart disease (CCHD). CCHD screenings in newborns focus specifically on serious heart defects that can significantly impact a newborn's oxygenation and require early intervention.

In contrast, transposition of the great arteries, tricuspid atresia, and truncus arteriosus all represent critical congenital heart defects that can cause significant cyanosis or other serious complications shortly after birth. These conditions are specifically included in the routine screening processes due to their severity and the need for prompt medical intervention to improve the chances of survival and healthy outcomes for affected infants.