What happens when babies with heart defects become adults? More than 90% of babies born with heart defects survive into adulthood. As a result, there are now more adults living with congenital heart disease than children. These adults have a chronic, lifelong condition and the European Society of Cardiology (ESC) has produced advice to give the best chance of a normal life. Source 3r.
We should celebrate that so many babies born with heart defects survive and that they grow up to live near normal lives. The wonders of modern medicine.