Sudden cardiac death (SCD) is frequently the initial manifestation of a cardiac arrhythmia,
resulting in about 350 000 deaths annually in the United States. 1 Devices such as the …

Microvolt level T-wave alternans (MTWA), a phenomenon of beat-to-beat variability in the
repolarization phase of the ventricles, has been closely associated with an increased risk of …

Cardiac arrhythmias constitute a tremendous burden on healthcare and are the leading
cause of mortality worldwide. An alarming number of people have been reported to manifest …

Electrograms (EGM) recorded from the surface of the myocardium are becoming more and
more accessible. T-wave alternans (TWA) is associated with increased vulnerability to …

Experimental in vivo and in vitro studies showed that electric currents applied during the
absolute refractory period can modulate cardiac contractility. In preclinical studies, cardiac …

Aims: Microvolt T-wave alternans (TWA), an oscillation in T-wave morphology of the
electrocardiogram (ECG), has been associated with increased susceptibility to ventricular …

Background: Repolarization alternans (RA) has been implicated in the pathogenesis of
ventricular arrhythmias and sudden cardiac death. Methods: We have developed a real …

The ability to accurately monitor tidal volume (TV) from electrocardiographic (ECG) signals
holds significant promise for improving diagnosis treatment across a variety of clinical …

Electrocardiographic alternans, a phenomenon of beat-to-beat alternation in cardiac
electrical waveforms, has been implicated in the pathogenesis of ventricular arrhythmias …

Background—T-wave alternans (TWA) has been implicated in the pathogenesis of
ventricular arrhythmias and sudden cardiac death. However, to estimate and suppress TWA …