Interval-Dependent Changes in Left Ventricular Contractile State in Lone Atrial Fibrillation and in Atrial Fibrillation Associated With Coronary Artery Disease

In atrial fibrillation (AF), beat-to-beat changes in left ventricular (LV) systolic performance are caused by variations in filling (preload), aortic pressure (afterload), and ventricular inotropic or contractile state. These factors are known to be influ