What is Atrial septal defect?

Atrial septal defect is a congenital heart defect in which blood flows between the atria of the heart

What's the mortality of Atrial septal defects?

50% of patients being dead at 50 years

Atrial septal defects (ASDs) are the {{c1::most likely congenital heart defect}} to be found in {{c2::adulthood}}