Device and method for the detection of ventricular repolarization alternans by windowing.

Device and method for detecting alternating ventricular repolarization by windowing. This invention provides a device and method for detecting alternating ventricular repolarization based analysis in continuous time and the extraction of information through windowing. As a main feature, the method has high robustness against noise and is very robust to the variability in heart rate due to normalization technique employed. Further it includes a procedure which removes information repolarization artifacts. Because of these characteristics, it is particularly suitable for implementation in devices for portable monitoring and implantable devices. The decision on the existence of alternation is done by analyzing a coefficient obtained from the spectral components at multiples of half the cardiacaprocedentes frequency spectral analysis of the electrocardiogram directly in the time domain using a procedure windowing dynamic.