Method and apparatus for identification of ischemic/infarcted regions and therapy optimization
First Claim
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1. An implantable device, comprising:
- a plurality of sensors adapted to be disposed near different myocardial regions;
sensing circuitry for receiving signals from the plurality of sensors;
a controller interfaced to the sensing circuitry that is programmed to derive one or more characteristics from the sensor signals, wherein the one or more characteristics are locally affected by myocardial ischemia or infarction;
wherein the controller is programmed to measure the one or more characteristics over time and establish baseline values for the measured characteristics; and
,wherein the controller is programmed to detect myocardial ischemia/infarction when a deviation from the baseline in one or more characteristics occurs above a specified threshold.
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Abstract
A method and apparatus is described for detecting and localizing areas of myocardial infarction or ischemia. By pacing sites in proximity to the infarcted or ischemic region with appropriately timed pacing pulses, the region is pre-excited in a manner that lessens the mechanical stress to which it is subjected, thus reducing the metabolic demand of the region and the stimulus for remodeling.
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Citations
20 Claims
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1. An implantable device, comprising:
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a plurality of sensors adapted to be disposed near different myocardial regions; sensing circuitry for receiving signals from the plurality of sensors; a controller interfaced to the sensing circuitry that is programmed to derive one or more characteristics from the sensor signals, wherein the one or more characteristics are locally affected by myocardial ischemia or infarction; wherein the controller is programmed to measure the one or more characteristics over time and establish baseline values for the measured characteristics; and
,wherein the controller is programmed to detect myocardial ischemia/infarction when a deviation from the baseline in one or more characteristics occurs above a specified threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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receiving signals from a plurality of sensors disposed near different myocardial regions; deriving one or more characteristics from the sensor signals, wherein the one or more characteristics are locally affected by myocardial ischemia or infarction; measuring the one or more characteristics over time and establish baseline values for the measured characteristics; and
,detecting myocardial ischemia/infarction when a deviation from the baseline in one or more characteristics occurs above a specified threshold. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification