In a normal human life span, the heart beats about 2–3 billion times. Under diseased
conditions, a heart may lose its normal rhythm and degenerate suddenly into much faster …

This article reviews recent data supporting the conjecture that, in the structurally and
electrophysiologically normal heart, cardiac fibrillation is not a totally random phenomenon …

Sequences of different human cardiac rhythms terminating in ventricular fibrillation have
been studied, both qualitatively and quantitively, with methods of nonlinear dynamics. The …

Ventricular arrhythmias have complex causes and mechanisms. Despite extensive
investigation involving many clinical, experimental, and computational studies, effective …

Cardiac arrhythmias are heart-rhythm disorders. Most arrhythmias are not life threatening,
and many are benign. But some rhythm disturbances originating in the ventricles—the …

Cardiac arrhythmia is the condition in which the heart's normal rhythm is disrupted. In this
article, we describe the heart's normal sinus rhythm and a number of different types of …

Defining the cellular electrophysiological mechanisms for ventricular tachyarrhythmias is
difficult, given the wide array of potential mechanisms, ranging from abnormal automaticity to …

Physiological systems such as the cardiovascular system are capable of five kinds of
behavior: equilibrium, periodicity, quasi-periodicity, deterministic chaos and random …

Sudden cardiac death, primarily caused by ventricular arrhythmias, is a major public health
problem—it is one of the leading causes of mortality in the United States, resulting in more …

The heart is an awesome machine, beating powerfully and relentlessly over one billion
times in the life span of an animal. It is designed to function reliably under a variety of …