Much of biology is rhythmical and comprises oscillators that can couple. These have
optimized energy efficiency and have been preserved during evolution. The respiratory and …

Background A small proportion of patients undergoing primary prophylactic implantation of
implantable cardioverter defibrillators (ICDs) experiences malignant arrhythmias. We …

The two most common modes of death among chronic heart failure (CHF) patients are
sudden cardiac death (SCD) and pump failure death (PFD). Periodic repolarization …

Background Cardiac autonomic dysfunction after myocardial infarction identifies patients at
high risk despite only moderately reduced left ventricular ejection fraction. We aimed to …

Strong recent clinical evidence links the presence of prominent oscillations of ventricular
repolarization in the low-frequency range (0.04–0.15 Hz) to the incidence of ventricular …

Background and Objectives: Enhanced beat-to-beat variability of ventricular repolarization
(BVR) has been linked to arrhythmias and sudden cardiac death. Recent experimental …

Periodic repolarization dynamics (PRD) is a novel electrocardiographic marker of cardiac
repolarization instability with powerful risk stratification capacity for total mortality and …

Background and Objectives: Recent studies in humans and dogs have shown that
ventricular repolarization exhibits a low-frequency (LF) oscillatory pattern following …

Ventricular arrhythmias and sudden cardiac death during long-term space missions are a
major concern for space agencies. Long-duration spaceflight and its ground-based analog …

Background: Cardiac autonomic dysfunction (CADF) is a major contributor to increased
cardiac mortality in schizophrenia patients. The aberrant function of voltage-gated ion …