Template Matching Method for Monitoring of ECG Morphology Changes
First Claim
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1. A method for use in an implantable medical device, comprising:
- sensing a subcutaneous ECG signal in a patient;
sensing a signal corresponding to a posture of the patient;
detecting a cardiac condition in response to the ECG signal and the posture signal.
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Abstract
An implantable medical device and associated method perform ECG morphology monitoring. A subcutaneous ECG signal and a posture signal are sensed in a patient. A cardiac condition is detected in response to the ECG signal and the posture signal. In one embodiment, multiple ECG morphology templates corresponding to each of a number of different patient postures are acquired and stored for use in detecting a cardiac condition.
185 Citations
13 Claims
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1. A method for use in an implantable medical device, comprising:
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sensing a subcutaneous ECG signal in a patient; sensing a signal corresponding to a posture of the patient; detecting a cardiac condition in response to the ECG signal and the posture signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A medical device system, comprising:
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a pair of subcutaneous ECG electrodes for sensing an ECG signal in a patient; a sensor for sensing a signal corresponding to a posture of the patient; a processor coupled to the ECG electrodes and the posture sensor and configured to detect a cardiac condition in response to the ECG signal and the posture signal. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A computer readable medium for storing a set of instructions which when implemented in an implantable medical device system cause the system to:
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sense a subcutaneous ECG signal in a patient; sense a signal corresponding to a posture of the patient; detect a cardiac condition in response to the ECG signal and the posture signal.
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Specification