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Atrial fibrillation

Erratic impulses in heart during atrial fibrillation and resulting EKG

In atrial fibrillation, erratic electrical impulses in the upper chambers of the heart (atria) cause those chambers to fibrillate, or quiver. This results in an irregular and frequently rapid heart rate. The irregular pattern in the electrocardiogram (EKG, ECG) tracing shows these erratic impulses.

Current as of: April 9, 2019

Author: Healthwise Staff
Rakesh K. Pai, MD - Cardiology, Electrophysiology
E. Gregory Thompson, MD - Internal Medicine
Adam Husney, MD - Family Medicine
Martin J. Gabica, MD - Family Medicine
John M. Miller, MD, FACC - Cardiology, Electrophysiology

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