Atrial fibrillation (AF) is a particular type of heartbeat (arrhythmia) characterized by an extremely fast irregular rhythm.
When at rest, the healthy heartbeats between 60 and 90 times a minute, with the atria (the two upper chambers of the heart) beating slightly earlier than the ventricles (the two lower chambers of the heart). The rate and timing of contractions (beats) are regulated by electrical impulses generated by the sinoatrial node (a specialized group of cells that produce small...
When you or someone you care about is diagnosed with atrial fibrillation it's important to know what your doctor's main goals are in... Read more »
The first thing I noticed about atrial fibrillation had nothing to do with my heart or chest. The first thing I noticed was that my lips... Read more »