Atrial fibrillation

Atrial fibrillation

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: December 15, 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