Atrial fibrillation is a cardiac arrhythmia in which the upper chambers of the heart the atria beat irregularly and, often, rapidly. The condition occurs as a consequence of uncoordinated ...

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Atrial fibrillation is the most common type of sustained cardiac arrhythmia—or abnormal heart rhythm—in the world. It develops when the electrical signals in your heart are triggered out of ...

Atrial fibrillation occurs when action potentials fire very rapidly within the pulmonary veins or atrium in a chaotic manner. The result is a very fast atrial rate — about 400 to 600 beats per ...

A summary image is below. Electrophysiologic management includes two approaches: a “rate control” strategy and a “rhythm control” strategy. In 2002, the Atrial Fibrillation Follow-up ...

Some clinicians prefer aspirin when balancing bleeding risk with the indication for an anticoagulant, Barnes said, reasoning ...