SYSTEM AND METHOD FOR ISCHEMIA CLASSIFICATION WITH IMPLANTABLE MEDICAL DEVICE
First Claim
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1. A method comprising:
- obtaining an electrogram representing cardiac data from an implantable medical device for a plurality of cardiac cycles;
determining an ST segment data point for each of the cardiac cycles;
evaluating the ST segment data points;
determining whether the evaluated ST segment data points indicate supply ischemia; and
evaluating a secondary indicator to confirm the determination.
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Abstract
An implantable medical device monitors ST segment data collected from EGM. ST trends are established and monitored over time. The IMD is able to discern whether the data indicate supply ischemia, demand ischemia, or other physiological causes. The IMD is then able to provide appropriate information and alerts.
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Citations
19 Claims
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1. A method comprising:
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obtaining an electrogram representing cardiac data from an implantable medical device for a plurality of cardiac cycles; determining an ST segment data point for each of the cardiac cycles; evaluating the ST segment data points; determining whether the evaluated ST segment data points indicate supply ischemia; and evaluating a secondary indicator to confirm the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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means for obtaining an electrogram representing cardiac data from an implantable medical device for a plurality of cardiac cycles; means for determining an ST segment data point for each of the cardiac cycles; means for evaluating the ST segment data points; and means for determining whether the evaluated ST segment data points indicate supply ischemia; and means for evaluating a secondary indicator to confirm the determination. - View Dependent Claims (17, 18, 19)
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Specification