When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...

The Essence of Resetting: Interaction Between the Cardiac Rhythm and the Perturbation Generated In the example of Figure 1 the reason why the ventricular premature contraction produces a ...

April 12, 2004 — Lone atrial flutter (ie, the occurrence of atrial flutter in patients without underlying heart disease) is associated with an increased risk of thromboembolism and subsequent ...

What is the electrophysiologic mechanism of atrioventricular reentrant tachycardia (AVNRT)? AVNRT is the most common narrow-complex tachycardia in healthy individuals and only second to atrial ...