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Atrial fibrillation is an irregular and often rapid heart rate that commonly causes poor blood flow to the body. During atrial fibrillation, the heart's two upper chambers (the atria) beat chaotically and irregularly — out of coordination with the two lower chambers (the ventricles) of the heart. Atrial fibrillation symptoms include heart palpitations, shortness of breath and weakness.
Episodes of atrial fibrillation can come and go, or you may have chronic atrial fibrillation. Although atrial fibrillation itself usually isn't life-threatening, it is a serious medical condition that sometimes requires emergency treatment. It can lead to complications. Treatments for atrial fibrillation may include medications and other interventions to try to alter the heart's electrical system.
Mayo Clinic in Rochester, Minn., is ranked among the Best Hospitals for heart and heart surgery by U.S. News & World Report.
Read more about atrial fibrillation.
Related book: Mayo Clinic Healthy Heart for Life! book provides an easy-to-follow plan to prevent and conquer heart disease.
Rosalee Johns says she has her life back thanks to a freezing therapy called cryoablation that restored her heartbeat to normal. In 2008, Johns, then age 67, was diagnosed with atrial fibrillation, a condition in which the atria — the ...
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