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 16, 2019
Author: Healthwise Staff Medical Review: 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
Medical Review: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