Atrial septal defect is caused by a hole in the atria, which is a boundary between the two chambers in the upper region of the heart. It leads to decreased levels of oxygen-rich blood in the body. It is also congenital. When the holes are small in size, they do not cause too many problems. But the larger holes may cause heart problems or lung problems.
HOW IS ATRIAL SEPTAL DEFECT DIAGNOSED?
Shortness of breath and fatigue are some of the main symptoms of Atrial septal defect.