Untreated coarctation of the aorta frequently leads to complications. Several of the complications may be a result of long-standing high blood pressure caused by the aortic coarctation. Complications are also possible after treatment for coarctation of the aorta.

Complications of coarctation of the aorta may include:

  • High blood pressure
  • Stroke
  • Enlargement in a section of the wall of the aorta (aneurysm)
  • Aortic rupture or tear (dissection)
  • Premature coronary artery disease — narrowing of the blood vessels that supply the heart
  • Heart failure
  • A weakened or bulging artery in the brain (brain aneurysm) or bleeding in the brain (hemorrhage)

In addition, if the coarctation of the aorta is severe, your heart might not be able to pump adequate blood to the organs of your body. This can cause damage to the heart. This can also result in kidney failure or other organ failure.

If your coarctation of the aorta was treated when you were young, there is a potential risk of the aorta re-narrowing (re-coarctation) over time. It may require additional treatments. You also have a higher risk of developing high blood pressure.

Sept. 15, 2015