Atrial Fibrillation

What Is Atrial Fibrillation

According to the National Heart, Lung and Blood Institute (NHLBI), atrial fibrillation (AF) is the most common type of arrhythmia. An arrhythmia, also known as a dysrhythmia, is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. AF occurs if rapid, disorganized electrical signals cause the heart’s two upper chambers, called the atria, to fibrillate. The term “fibrillate” means to contract very fast and irregularly. In AF, blood pools in the atria and isn’t pumped completely into the heart’s two lower chambers, called the ventricles. As a result, the heart’s upper and lower chambers don’t work together as they should, and patients are at risk of low blood pressure, blood clots, and strokes. An estimated 2.7 million Americans are affected by atrial fibrillation.

What Causes Atrial Fibrillation

Risk Factors For Atrial Fibrillation

Diagnosing Atrial Fibrillation

Symptoms of Atrial Fibrillation


Living With Atrial Fibrillation



Medication And Treatment

Complementary and Alternative Treatment

Care Guide

When To Contact A Doctor

Questions For Your Doctor

Questions For A Doctor