AUTOMATED HEART FUNCTION CLASSIFICATION TO STANDARDIZED CLASSES
First Claim
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1. A system comprising:
- a physical activity sensor, configured to sense an indication of physical activity of a patient;
a physiological sensor, configured to sense a physiological response of a patient corresponding to the sensed indication of the physical activity of the patient;
a signal processor circuit, configured to receive the indication of physical activity of the patient from the physical activity sensor, and configured to receive the physiological response of the patient from the physiological sensor, and configured to automatically classify the patient into a classification corresponding to a cardiac function status of the patient, the classification selected from a group of standard diagnostic classes describing different cardiac function statuses, the classes recognized by a medical standard-establishing organization; and
a patient classification memory storage location, configured to store an indication of the classification of the patient to be provided to a user or process.
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Abstract
A system and method automatically classifies a patient'"'"'s heart function status, such as by using an implantable medical device (IMD) to determine a physiological response to activity, and using that information to perform the classification. For example, a physical activity sensor and a physiological sensor are used to automatically classify patients into heart function status classes, such as NYHA classes or ACC/AHA classes. Changes in a patient'"'"'s classification can be used to monitor heart function status over time and to monitor therapy responsiveness.
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Citations
23 Claims
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1. A system comprising:
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a physical activity sensor, configured to sense an indication of physical activity of a patient; a physiological sensor, configured to sense a physiological response of a patient corresponding to the sensed indication of the physical activity of the patient; a signal processor circuit, configured to receive the indication of physical activity of the patient from the physical activity sensor, and configured to receive the physiological response of the patient from the physiological sensor, and configured to automatically classify the patient into a classification corresponding to a cardiac function status of the patient, the classification selected from a group of standard diagnostic classes describing different cardiac function statuses, the classes recognized by a medical standard-establishing organization; and a patient classification memory storage location, configured to store an indication of the classification of the patient to be provided to a user or process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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using a medical device, detecting an indication of physical activity of a patient; using the medical device, detecting a measurement of a physiological response of the patient corresponding to the measurement of physical activity of the patient; using the measurement of the physiological response, automatically classifying the patient into a classification corresponding to a cardiac function status of a patient, the classification selected from a group of standard diagnostic classes describing different cardiac function statuses, the group of classes recognized by a medical standard-establishing organization; and providing an indication of the classification of the patient to a user or process. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification