The Cardiac Dysrhythmias

The rhythm of the heart is the ordered sequence of depolarization of the myocardium. The term “cardiac rhythm” encompasses within its meaning: 1. The site of origin of the depolarization process 2. The temporal and spatial sequence of the spread of that depolarization throughout the myocardium 3. The temporal relationship of the depolarization to those that precede and which follow it [37]