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An arrhythmia is a problem with the speed or rhythm of the heartbeat. Atrial fibrillation (AF) is the most common type of arrhythmia. The cause is a disorder in the heart's electrical system.

Often, people who have AF may not even feel symptoms. But you may feel

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A photo of an EKG strip
Results 1 - 10 of 287 for atrial fibrillation
  1. Atrial Fibrillation (National Library of Medicine)  
    ... with the speed or rhythm of the heartbeat. Atrial fibrillation (AF) is the most common type of arrhythmia. ...
  2. Atrial Fibrillation Interactive Tutorial (Patient Education Institute)  
    Atrial Fibrillation Introduction Atrial fibrillation is a common heart condition that affects approximately 2.5 million Americans every ... and causes them to contract and pump blood. Atrial Fibrillation Atrial fibrillation occurs when the electric current in ...
  3. ... Research studies OMIM Genetic disorder catalog Conditions > Familial atrial fibrillation On this page: Description Genetic changes Inheritance Diagnosis ...
  4. A Patient’s Guide to Living With Atrial Fibrillation Julie B. Shea , MS, RNCS ; Samuel F. Sears , PhD From the Brigham and Women’s Hospital, Boston, Mass (J.B.S.) and East Carolina ...
  5. Stroke Prevention in Atrial Fibrillation (American Heart Association)  
    ... Sign In Cardiology Patient Page Stroke Prevention in Atrial Fibrillation Christian T. Ruff , MD, MPH From the TIMI ... fast heartbeat. Previous Section Next Section What Causes Atrial Fibrillation? Several factors and medical conditions make it more ...
  6. What Are the Signs and Symptoms of Atrial Fibrillation? From the National Institutes of Health (National Heart, Lung, and Blood Institute)  
    ... Twitter. What Are the Signs and Symptoms of Atrial Fibrillation? Atrial fibrillation (AF) usually causes the heart's lower ... Chest pain Dizziness or fainting Fatigue (tiredness) Confusion Atrial Fibrillation Complications AF has two major complications— stroke and ...
  7. Atrial Fibrillation and Stroke From the National Institutes of Health (National Institute of Neurological Disorders and Stroke)  
    NINDS Atrial Fibrillation and Stroke Information Page Table of Contents (click to jump to sections) What is Atrial Fibrillation and ... research is being done? Clinical Trials What is Atrial Fibrillation and Stroke? Atrial fibrillation (AF) describes the rapid, ...
  8. Treatment Guidelines of Atrial Fibrillation (AFib or AF) (American Heart Association) - PDF  
    ... Pressure Tools & Resources Stroke More Treatment Guidelines of Atrial Fibrillation (AFib or AF) Updated:Apr 25,2014 What ... content was last reviewed on 04/16/14. Atrial Fibrillation • Introduction • What is Atrial Fibrillation? • Why AFib Matters • ...
  9. Atrial Fibrillation From the National Institutes of Health (National Heart, Lung, and Blood Institute)  
    ... page from the NHLBI on Twitter. What Is Atrial Fibrillation? Atrial fibrillation (A-tre-al fi-bri-LA- ... Heart Works article. Understanding the Electrical Problem in Atrial Fibrillation In AF, the heart's electrical signals don't ...
  10. How Is Atrial Fibrillation Treated? From the National Institutes of Health (National Heart, Lung, and Blood Institute)  
    ... page from the NHLBI on Twitter. How Is Atrial Fibrillation Treated? Treatment for atrial fibrillation (AF) depends on ... too much thyroid hormone). Who Needs Treatment for Atrial Fibrillation? People who have AF but don't have ...
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