“Is atrial septal defect a heart disease?”

In atrial subtlety fact is a form of heart disease. This will be classified as “congenital“ heart disease. In other words, a disease that you were born with. In some cases the atrial septal defect is very small and has very little clinical consequence. In other conditions, if the ASD is large it can lead to right heart overload and failure, and predispose to paradoxical emboli where a clot in the veins can ass th right the ASD and cause a stroke. Large ASDs should be closed either surgically or with catheter treatment.