Possible Complications Some people may have a condition shortness of breath and low arterial blood oxygen levels when sitting or standing. This is called platypnea-orthodeoxia. This is rare. Rarely, people with PFOs may have a higher rate of a certain type of stroke (called paradoxical thromboembolic stroke).
The foramen ovale usually closes 6 months to a year after the baby's birth.
Patent foramen ovale lets a small amount of blood flow between the flaps connecting your right and left atrium. Normally these flaps stop blood from flowing between them. Usually, patent foramen ovale causes no problems.
Rarely, a patent foramen ovale can cause a significant amount of blood to go around the lungs. This lowers blood oxygen levels, a condition called hypoxemia. Stroke. Sometimes small blood clots in veins may travel to the heart.
In general, patent foramen ovale doesn't cause symptoms or health complications, but it can increase your risk for developing the following: Migraine headaches. Blood clots. Low oxygen levels (Platypnea orthodeoxia) Shortness of breath and dizziness if you suffer from low oxygen levels.
Most PFOs require no treatment. People who have no risk factors for stroke or any history of traveling blood clots usually do not get treatment. Your healthcare provider may want to treat your PFO if you have had problems from these traveling blood clots, like stroke.
All babies have this opening (called a foramen ovale) before birth to allow blood to bypass the lungs. Shortly after birth, the tissue usually grows together and closes the hole. But in about 25 percent of people, the hole remains open (patent), resulting in a PFO. Many people have a PFO and never know it.
Usually, patent foramen ovale causes no problems. But PFO may let a blood clot travel from the right to the left side of your heart. Your heart could pump the clot into your body. If the clot reaches your brain, it could cut off the blood supply.
For small PFOs without associated interatrial septal aneurysm, the 25-mm size Cribriform, PFO occluder, or Helex is preferred. Using devices smaller than 25 mm in adults is not required and may increase the risk for device embolization.
You may be a candidate for minimally invasive PFO closure if you: Have been diagnosed with a PFO and have had a stroke due to an unknown cause (one not attributed to a condition such as atrial fibrillation or carotid artery disease) Can take blood-thinning medication. Ideally are between the ages of 18 and 60.