System and method for cardiac monitoring using adaptive sensitivity/specificity levels
First Claim
1. A method of adaptive arrhythmia detection, the method comprising:
- monitoring ECG signals of a patient via a patient medical device;
detecting arrhythmic ECG segments based on a heart rate threshold and an initial sensitivity level associated with the heart rate threshold;
incrementing a count of detected arrhythmic ECG segments in response to each arrhythmic ECG segment detected; and
decreasing the sensitivity level associated with the heart rate threshold in response to the count of detected arrhythmic ECG segments exceeding a threshold.
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Abstract
Embodiments of the present disclosure describe methods of adaptive arrhythmia detection comprising monitoring ECG signals of a patient via a patient medical device, detecting and capturing ECG segments based on a heart rate threshold and an initial sensitivity level associated with the heart rate threshold; and adjusting the sensitivity level based on previously captured ECG segments. Embodiments of the present disclosure further describe patient medical devices comprising one or more electrodes and sensing circuitry for monitoring ECG signals of a patient; and a processing module configured to receive the monitored ECG signal, wherein the processing module detects and captures ECG segments based on a plurality of heart rate thresholds and one or more sensitivity levels associated with each of the heart rate thresholds, and adjusts at least one of the one or more sensitivity levels associated with each of the heart rate thresholds.
30 Citations
17 Claims
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1. A method of adaptive arrhythmia detection, the method comprising:
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monitoring ECG signals of a patient via a patient medical device; detecting arrhythmic ECG segments based on a heart rate threshold and an initial sensitivity level associated with the heart rate threshold; incrementing a count of detected arrhythmic ECG segments in response to each arrhythmic ECG segment detected; and decreasing the sensitivity level associated with the heart rate threshold in response to the count of detected arrhythmic ECG segments exceeding a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of adaptive arrhythmia detection, the method comprising:
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monitoring ECG signals of a patient via a patient medical device; detecting arrhythmic ECG segments based on a plurality of heart rate thresholds and one or more sensitivity levels associated with each of the heart rate thresholds; incrementing a count of detected arrhythmic ECG segments corresponding to one of the heart rate thresholds in response to each arrhythmic ECG segment detected based on the heart rate threshold and associated sensitivity level; and decreasing the sensitivity level associated with the heart rate threshold having a corresponding count of detected arrhythmic ECG segments that exceeds a threshold. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A patient medical device, the device comprising:
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one or more electrodes and sensing circuitry for monitoring ECG signals of a patient; and a processing module configured to receive the monitored ECG signal, wherein the processing module detects and captures ECG segments based on a plurality of heart rate thresholds and one or more sensitivity levels associated with each of the heart rate thresholds, increments a count of detected arrhythmic ECG segments corresponding to one of the heart rate thresholds in response to each arrhythmic ECG segment detected based on the heart rate threshold and associated sensitivity level, and decreases the sensitivity level associated with the heart rate threshold having a corresponding count of detected arrhythmic ECG segments that exceeds a threshold. - View Dependent Claims (15, 16, 17)
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Specification