Patent ID: 9585589
Date: 2017-03-07
CPC Classifications: A61B

Claim:
1. One or more computer-readable storage devices having computer-executable instructions embodied thereon that when executed, facilitate a method for automatically providing a notification for ventricular arrhythmias in an individual that are likely to result in sudden cardiac death (SCD), the method comprising: obtaining, from one or more sensors, signals representative of electrical activity of the heart of said individual; determining, utilizing an objective function, a QT dispersion stability index (QTdSI) from said signals, the objective function comprising a timeseries calculated from serially-acquired waveform data; the determining comprising calculating a moving average of Lyapunov exponents; determining a difference between the determined QTdSI and a reference value to detect the presence of instability of QT interval dispersion or other measurements in said signals; and providing a notification when an increased risk for SCD is determined; a significant difference being indicative of an increased risk of said individual of sudden cardiac death (SCD); the results of the objective function being used by a decision-support algorithm to determine a quantitative risk for SCD; and the decision-support algorithm comprising at least one of a support vector machine, logistic regression equation, or a neural network.