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This study aims to characterize the heart rate variability of subjects with reflex syncope during head-up tilt test and to find out non-linear parameters that can differentiate between subjects who develop syncope during the test and others who do not. For this purpose, the Empirical Mode Decomposition was applied to RR time series of subjects underwent a head-up tilt test. It decomposes the time...
This study evaluates the predictive values of T-wave morphology parameters reflecting the repolarization changes by beat to beat calculation of parameters using different mathematical tools to identify additional markers sensitive to the variation induced by drug in the surface of the electrocardiogram. T-wave morphology indicators are extracted from nearly 6 hours recordings of two patients from...
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