Ventricular Late Potentials (VLP) Score Calculator

Ventricular Late Potentials (VLP) Score: Explanation and Clinical Context Ventricular Late Potentials (VLP) detected on signal-averaged ECG represent delayed depolarization of the ventricular myocardium, typically seen after myocardial infarction. The VLP score uses three parameters: filtered QRS duration (fQRS), low-amplitude signal duration in the terminal 40 ms of QRS (LAS40), and root mean square voltage of the last 40 ms of QRS (RMS40). Each abnormal parameter contributes 1 point, giving a score from 0 to 3.

Higher VLP scores are associated with increased risk of ventricular tachyarrhythmias and sudden cardiac death. This tool assists clinicians in risk stratification for post-myocardial infarction patients and may guide decisions regarding ICD implantation or intensive monitoring.