Interrupted Aortic Arch (IAA)
en español: Arco aórtico interrumpido
Medically reviewed by: Shannon Nees, MD
What Is an Interrupted Aortic Arch (IAA)?
An interrupted aortic arch (IAA) is a rare heart condition that happens when the aorta doesn't form completely. The aorta is the heart's main pipeline, carrying oxygen-rich blood to the body. Normally, it's shaped like an arch or curve. In an interrupted aortic arch, part of the aorta is missing, leaving a gap.