Medical Definition of Arrhythmias, atrial

Arrhythmias, atrial: Abnormal heart rhythm due to electrical disturbances in the atria (the upper chambers of the heart) or the AV node "relay station", leading to fast heart beats. Examples of atrial arrhythmias includes atrial fibrillation, atrial flutter, and paroxysmal atrial tachycardia (PAT).

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QUESTION

In the U.S., 1 in every 4 deaths is caused by heart disease. See Answer

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Reviewed on 12/4/2018