Why the study?
Does precision digital processing of ECG signals identify differences in T-wave alternans, QT dispersion, and heart rate turbulence between cardiomyopathy patients with and without life-threatening ventricular arrhythmias?
Does precision digital processing of ECG signals identify differences in T-wave alternans, QT dispersion, and heart rate turbulence between cardiomyopathy patients with and without life-threatening ventricular arrhythmias?
A novel computer program for ECG processing can identify significantly higher values of T-wave alternans, QT dispersion, and heart rate turbulence in cardiomyopathy patients with life-threatening ventricular arrhythmias, potentially aiding in sudden cardiac death risk stratification.
The aim is to develop and clinical test of the novel computer program for the identification of the prognostic markers for sudden cardiac death. Among them are T-wave alternans, duration and dispersion of the interval QT, heart rate turbulence. Material and methods: 79 pts with cardiomyopathy and life-threatening ventricular arrhythmias and 30 pts without arrhythmias. The methods of the precision digital processing of the ECG signal are used. Results: The significantly higher values of T-wave alternans, QT dispersion and heart rate turbulence in pts with ventricular arrhythmias were obtained (p<0,01). Conclusion: The identification of the predictors of sudden cardiac death is necessary for timely risk stratification and choosing the treatment strategy in pts with cardiomyopathy.
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Mrochek et al. (2011) studied this question.
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