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One in three people with AFib will have a stroke.

Our goal is to help you understand the connection between atrial fibrillation (AFib) and stroke, how your risk can change over time, and ways to help lower your risk of stroke, if appropriate.

AFib is a type of irregular heart beat. It can sometimes be felt as a fluttering or "thumping" in the chest. Since the heart isn't pumping properly, blood may pool in the upper chambers and form a clot. This clot can break free, travel to the brain, and cause a stroke.

Some people with AFib may not have symptoms, but are still at risk of a stroke.

Even if you feel fine, you may still be at risk if not properly treated.

You should assess your risk periodically because certain health issues—and growing older—can increase your stroke risk over time.

AFib & stroke risk, here's the connection:

1) clot forms in the heart 2) clot travels to the brain 3) clot causes a stroke
Watch how a clot can lead to a stroke

Watch how a clot can lead to a stroke

How real is your risk of an AFib‑related stroke?

People with AFib are 5 times more likely to have a stroke. Up to 6 million Americans live with AFib, a major risk of stroke.
1 in 3

of all AFib patients will have a stroke in their lifetime

Calculate Your Risk
Calculate Your Risk

Stroke risk can change over time. Calculate your risk.

Learn About Different Treatments
Learn About Different Treatments

Guidelines offer advice on ways to reduce AFib stroke risk.