Systems and methods to indicate heart failure co-morbidity
First Claim
1. A system comprising:
- a heart failure event detection circuit, configured to analyze information from different physiological signals to determine a heart failure event indication corresponding to a time period;
a non-heart failure physiological event detection circuit, configured to determine a non-heart failure physiological event characteristic including detecting a heart failure co-morbidity different than an improvement or worsening of the heart failure event using at least one of the different physiological signals;
a comparison circuit, configured to compare the at least one of the different physiological signals to a specified criterion indicative of the heart failure event to provide a comparison value indicating whether the non-heart failure physiological event characteristic contributes to the heart failure event indication; and
a non-heart failure status indicator circuit, coupled to the heart failure event detection circuit and the non-heart failure physiological event detection circuit and the comparison circuit, and configured to compute a non-heart failure physiological status indication using a logical combination of the heart failure event indication, the non-heart failure physiological event characteristic, and the comparison value; and
wherein the non-heart failure physiological status indication indicates that the non-heart failure physiological event is absent, during the time period, whenthe heart failure event indication indicates that the heart failure event is present during the time period,the non-heart failure event characteristic indicates that the non-heart failure physiological event including the heart failure co-morbidity is present during the time period, andthe comparison value indicates that the at least one of the different physiological signals does meet the specified criterion indicative of the heart failure event.
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Abstract
Systems and methods to indicate heart failure co-morbidity are described. In an example, one or more physiological signals can be analyzed for a specified time period to determine at least one of an indication of a heart failure event or a characteristic of heart failure co-morbidity, such as a characteristic of a non-heart failure physiological event. At least one of the different physiological signals can be compared to a specified criterion indicative of the heart failure event to provide a comparison value, where the comparison value is indicative of whether the at least one of the different physiological signals contributed towards the indication of the heart failure event. An indication of a non-heart failure physiological event can be determined using the heart failure event indication, the non-heart failure physiological event characteristic, and the comparison value indicative of whether the one or more physiological signals contributed towards the heart failure event.
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Citations
20 Claims
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1. A system comprising:
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a heart failure event detection circuit, configured to analyze information from different physiological signals to determine a heart failure event indication corresponding to a time period; a non-heart failure physiological event detection circuit, configured to determine a non-heart failure physiological event characteristic including detecting a heart failure co-morbidity different than an improvement or worsening of the heart failure event using at least one of the different physiological signals; a comparison circuit, configured to compare the at least one of the different physiological signals to a specified criterion indicative of the heart failure event to provide a comparison value indicating whether the non-heart failure physiological event characteristic contributes to the heart failure event indication; and a non-heart failure status indicator circuit, coupled to the heart failure event detection circuit and the non-heart failure physiological event detection circuit and the comparison circuit, and configured to compute a non-heart failure physiological status indication using a logical combination of the heart failure event indication, the non-heart failure physiological event characteristic, and the comparison value; and wherein the non-heart failure physiological status indication indicates that the non-heart failure physiological event is absent, during the time period, when the heart failure event indication indicates that the heart failure event is present during the time period, the non-heart failure event characteristic indicates that the non-heart failure physiological event including the heart failure co-morbidity is present during the time period, and the comparison value indicates that the at least one of the different physiological signals does meet the specified criterion indicative of the heart failure event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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analyzing information from different physiological signals by a heart failure event detection circuit to determine a heart failure event indication corresponding to a time period; determining a non-heart failure physiological event characteristic including detecting a heart failure co-morbidity different than an improvement or worsening of the heart failure event by a non-heart failure physiological event detection circuit using at least one of the different physiological signals; comparing, using a comparison circuit, the at least one of the different physiological signals to a specified criterion indicative of the heart failure event to provide a comparison value indicating whether the non-heart failure physiological event characteristic contributes to the heart failure event indication; and computing, using a non-heart failure status indicator circuit, a non-heart failure physiological event indication using a logical combination of the heart failure event indication, the non-heart failure physiological event characteristic, and the comparison value; and wherein the non-heart failure physiological status indication indicates that the non-heart failure physiological event is absent, during the time period, when the heart failure event indication indicates that the heart failure event is present during the time period, the non-heart failure event characteristic indicates that the non-heart failure physiological event including the heart failure co-morbidity is present during the time period, and the comparison value indicates that the at least one of the different physiological signals does meet the specified criterion indicative of the heart failure event. - View Dependent Claims (17, 18, 19, 20)
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Specification