01/15/2019
What is an atrial septal defect (ASD)?
As opposed to PFOs, ASDs are quite rare. They are never normal and occur due to problems with the development of the heart, in which the wall between the atria does not fully form.
As opposed to PFOs, ASDs are quite rare. They are never normal and occur due to problems with the development of the heart, in which the wall between the atria does not fully form.