Atrial fibrillation (AFib) is a condition that disrupts the body’s regular heartbeat. A glitch in the heart’s electrical system makes the upper chambers (the atria) quiver. This causes the lower chambers (the ventricles) to beat irregularly. AFib can be dangerous because it raises the risk of stroke and heart failure.
AFib can lead to a stroke or other serious problem before it causes noticeable symptoms. To catch an irregular heartbeat early, the National Stroke Association recommends checking your pulse once a month — especially if you are over 40 or have risk factors for stroke. If the rhythm seems unsteady or you have any concerns, contact your health care professional.
In many people, AFib does not cause obvious warning signs however when symptoms do occur, they often include:
An uneven pulse
A racing or pounding heart
A feeling that the heart is fluttering
Dizziness
Chest pain
AFib is not always an emergency, but you should call 911 if you have any of these symptoms:
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