Patent ID: 8838224

Claim:
A method for predicting ventricular tachyarrhythmia, the method comprising: determining a set of repolarization parameters indicative of ventricular repolarization in a subject's heart, wherein the determining is performed in successive time segments, thereby to obtain a time series of the set of repolarization parameters; producing, based on the time series, at least one trend variable indicative of slow changes in the ventricular repolarization of the heart and at least one fast change variable indicative of fast changes in the ventricular repolarization of the heart; determining at least one control parameter indicative of occurrences of events that affect the ventricular repolarization of the heart without increasing risk of ventricular tachyarrhythmia; and predicting risk of potential ventricular tachyanhythmia based on the at least one trend variable and the at least one fast change variable, wherein the predicting comprises discarding at least the fast change variable based upon the at least one control parameter.