Method and apparatus for treatment of cardiac tachyarrhythmias
First Claim
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1. A method of preventing a heart rhythm disturbance comprising:
- detecting cardiac electrical activity;
analyzing the cardiac electrical activity to measure beat-to-beat variability in the morphology of the electrocardiographic waveforms;
determining whether the measured beat-to-beat variability exceeds a threshold used to trigger therapy; and
delivering electrical impulses during the refractory period when the threshold is exceeded.
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Abstract
Method and apparatus for preventing heart rhythm disturbances by recording cardiac electrical activity, measuring beat-to-beat variability in the morphology of electrocardiographic waveforms, and using the measured beat-to-beat variability to control the delivery of electrical impulses to the heart during the absolute refractory period.
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Citations
18 Claims
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1. A method of preventing a heart rhythm disturbance comprising:
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detecting cardiac electrical activity; analyzing the cardiac electrical activity to measure beat-to-beat variability in the morphology of the electrocardiographic waveforms; determining whether the measured beat-to-beat variability exceeds a threshold used to trigger therapy; and delivering electrical impulses during the refractory period when the threshold is exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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