Air travel is not only a risk for DVT secondarily to prolonged immobility during which blood pools in the legs (the so-called economy class syndrome3) but in a patient with PFO also because of altitude exposure. Even in well-pressurized planes, oxygen levels correspond to altitude levels of up to 8,000 feet.
Measuring EF is important in diagnosing and monitoring heart failure, as well as assessing how well the heart is pumping blood. Cardiac magnetic resonance imaging (MRI) is the most accurate test for calculating EF, being considered the gold standard for measuring and diagnosing EF.
A patent foramen ovale may be difficult to confirm on a standard echocardiogram. Your provider may recommend this test to get a closer look at the heart. A transesophageal echocardiogram takes pictures of the heart from inside the body. It's considered the most accurate way to diagnose a patent foramen ovale.
Transesophageal echocardiography (TEE), including the microbubble test, is the gold standard for the diagnosis of PFO 10,11.
Most PFOs don't need to be closed. Most PFOs cause no symptoms or complications. Larger PFOs may cause stroke. People with symptomatic or large PFOs may benefit from a procedure to close the hole.
The RLS and size of the potential PFO are graded on the number of microbubbles counted as grade 1 (1–10 microbubbles), grade 2 (11–30 microbubbles), grade 3 (31–100 microbubbles), grade 4 (101–300 microbubbles) and grade 5 (>300 microbubbles)27 (Figure 4).
If the PFO is not easily seen, a cardiologist can perform a "bubble test." Saline solution (salt water) is injected into the body as the cardiologist watches the heart on an ultrasound (echocardiogram) monitor. If a PFO exists, tiny air bubbles will be seen moving from the right to left side of the heart.
How to manage patent foramen ovale Eating a healthy diet. Getting enough exercise and avoiding obesity. Taking medicines for high blood pressure or high cholesterol, as needed. Not smoking. Getting treatment for other health conditions that increase the risk for stroke. Avoiding excess alcohol use or illicit drugs.
You may be able to travel safely but check with your GP or heart specialist before you book a flight. If you have severe symptoms of heart valve disease, you may not be allowed to fly. Your doctor will have to assess your condition and give you the OK.