ASD/PFO Closure

Some people are born with problems with their heart, called congenital defects, that do not correct themselves over time. Two common congenital heart defects are atrial septal defect (ASD) and patent foramen ovale (PFO).

Atrial septal defect (ASD) is a hole in the septum, the muscle that separates the heart’s two upper chambers, or atria. An ASD larger than 2 centimeters creates a risk of an enlarged heart, abnormal health rhythms, stroke, high blood pressure and leaky valves.

Patent foramen ovale is a type of ASD. The foramen ovale is a hole in the septum that helps deliver oxygen to a fetus in its mother’s womb. This hole normally closes after birth; when it does not, the condition is called patent foramen ovale.


Depending on symptoms, treatment for atrial septal defects may include medication to prevent blood clots or a procedure to close the hole, including:

  • Nonsurgical (percutaneous) repair, which involves inserting a device through a catheter to seal the hole
  • Minimally invasive surgery to close the hole with a patch of tissue or sutures

Making an Appointment

Learn more about treatment options by making an appointment with Guthrie Cardiology. Call 866-GUTHRIE (866-488-4743).