Methods for quantifying the risk of cardiac death using exercise induced heart rate variability metrics
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United States of America Patent
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May 4, 2010
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Mar 1, 2007
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Mar 3, 2006
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Abstract
Methods and apparatus for assessing cardiac risks in a specific patient. One embodiment of a method in accordance with the invention comprises providing heart rate activity of a specific patient including a windowed time series relating to heart rate variability during a heart rate test. This method further includes determining a frequency domain value based on energy values of frequency bands of the heart rate variability in the windowed time series, and/or determining an aggregate power for a frequency band of the windowed time series. This method further includes assessing the risk of a cardiac event based on the frequency value and/or the aggregate power.
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