Definition of Defect, atrial septal (ASD)

Reviewed on 6/3/2021

Defect, atrial septal (ASD): A hole in the septum, the wall, between the atria, the upper chambers of the heart. Commonly called an ASD. ASDs are a major class of congenital cardiac malformation.

SLIDESHOW

Heart Disease: Symptoms, Signs, and Causes See Slideshow

Health Solutions From Our Sponsors