late potential


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Related to late potential: ventricular late potential, SAECG

late potential

Cardiology A high-frequency, low-amplitude signal at the tail of a QRS complex, which is attributed to fragmented and delayed electrical conduction through the borders of a myocardial scar; delayed conduction of LPs allows reentry of electrical impulses and ↑ susceptibility to ventricular arrhythmias

late potential

Deflections found on signal-averaged electrocardiograms that follow the QRS complex and point to an increased likelihood of ventricular dysrhythmias. These deflections represent delays in electrical conduction through the ventricles.
See also: potential
References in periodicals archive ?
Correlation between late potentials duration and QTc dispersion: Is there a causal relationship?
Diagnostiv value of electrocardiographic variables to predict the presence of ventricular late potentials.
In comparison, about one-third of the patients whose vessels remained partly blocked showed late potentials on their electrocardiograms.
ART's patented signal averaging electrocardiogram ("SAECG") analysis software will be used to assess the presence of cardiac late potentials in patients enrolled in the study in conjunction with other non-invasive cardiac tests.
MTWA outperformed nine other risk indices including late potentials as measured by signal averaged ECG and non-sustained ventricular tachycardia (NSVT) on Holter monitoring.