Do you know if you have an oval window or not? Take the check-up program and find out!
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Most people with an open oval window do not need treatment. In certain situations, your doctor may recommend that you or your child perform surgery to close the open oval window.

Indications for closing

If an open oval window is accidentally detected while performing an echocardiogram, the operation to close the oval window is usually not performed.

Surgery to close an open oval window is recommended by the doctor for patients who have had strokes associated with an open oval window before, and no other cause of strokes has been detected.

Surgical closure of the oval window can be performed to treat low blood oxygen levels associated with an open oval opening.

In some cases, open oval window surgery can be performed to prevent migraine attacks, but there are no official recommendations on this issue yet.

Surgical and other methods of closing the oval window:

Closing with a special occluder device.

The occluder consists of two disks connected by a jumper. With heart catheterization, the doctor can install an occluder that closes the open oval window.

During this operation, the occluder is located at the end of a long tube (catheter). The doctor inserts the catheter along with the device through a vein in the groin and directs the device to the desired location using x-rays and echocardiography.

Most operations are carried out without complications, but rarely there may be dislocations of the device and irregular heartbeats.

According to the results of recent studies (CLOSE, RESPECT, REDUCE, DEFENSE-PFO), endovascular closure of the open oval window is more effective in preventing repeated strokes than any lifetime drug therapy.


An open oval window can be closed surgically by opening the heart and stitching together this defect. This operation can be performed using a very small incision on the chest.

If you or your child are undergoing surgery to correct another heart problem, your doctor may recommend surgically closing the open oval window at the same time.

Prevention of recurrent stroke

To prevent repeated strokes, certain medications can be used that reduce the risk of blood clots passing through an open oval window. Antiplatelet medications such as aspirin or clopidogrel (plavix) and other blood-thinning medications (anticoagulants) such as warfarin, dabigatran (pradaxa), apixaban (eliquis) and rivaroxaban (xarelto) may be useful for people with an open oval window who has had a stroke.

Medications of the antiplatelet group can also be useful in some patients with migraines, and can reduce the frequency and duration of attacks. You can study the research conducted by our specialists testing new methods of treatment, diagnosis of this and other diseases.