Cardiac rhythm management system with arrhythmia classification and electrode selection
First Claim
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1. A cardiac rhythm management system including:
- a plurality of electrodes, sized and shaped to be associated with a heart;
a cardiac signal detector circuit, coupled to the electrodes;
an energy output circuit, coupled to at least one of the electrodes; and
a controller, coupled to the cardiac signal detector and the energy output circuit, the controller including;
an arrhythmia detector module;
an arrhythmia classifier module, to classify the detected arrhythmia according at least to a sequence in which a heart contraction depolarization is received at the electrodes;
a therapy map, providing an antiarrhythmia therapy corresponding to the arrhythmia classification; and
a control signal to be issued to the energy output circuit to deliver a selected antiarrhythmia therapy corresponding to an arrhythmia classification.
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Abstract
A system, method, or device classifies an arrhythmia according to the temporal order in which a depolarization wave associated with a particular heart contraction is received at a plurality of electrodes. One or more antiarrhythmia therapies is mapped to each arrhythmia classification. When a particularly classified arrhythmia is detected, the correspondingly mapped therapy list is selected and an appropriate antiarrhythmia therapy delivered. In one example, the particular therapy delivered in response to an arrhythmia depends at least in part on its historical success in treating arrhythmias of that classification.
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Citations
32 Claims
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1. A cardiac rhythm management system including:
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a plurality of electrodes, sized and shaped to be associated with a heart;
a cardiac signal detector circuit, coupled to the electrodes;
an energy output circuit, coupled to at least one of the electrodes; and
a controller, coupled to the cardiac signal detector and the energy output circuit, the controller including;
an arrhythmia detector module;
an arrhythmia classifier module, to classify the detected arrhythmia according at least to a sequence in which a heart contraction depolarization is received at the electrodes;
a therapy map, providing an antiarrhythmia therapy corresponding to the arrhythmia classification; and
a control signal to be issued to the energy output circuit to deliver a selected antiarrhythmia therapy corresponding to an arrhythmia classification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method including:
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detecting an arrhythmia at a plurality of electrodes;
classifying a detected arrhythmia according at least to a sequence in which a heart contraction depolarization is received at the electrodes;
selecting an antiarrhythmia therapy corresponding to an arrhythmia classification; and
delivering a selected antiarrhythmia therapy by issuing a control signal to the energy output circuit. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A cardiac rhythm management system including:
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a plurality of electrodes associated with a heart;
a cardiac signal detector circuit, coupled to the electrodes;
an energy output circuit, coupled to at least one of the electrodes; and
a controller, coupled to the cardiac signal detector and the energy output circuit, the controller including control states, the controller sequencing through control states to;
an arrhythmia detector module, configured to detect an arrhythmia and to determine whether a delivered antiarrhythmia therapy was successful at treating the arrhythmia;
an arrhythmia classifier module configured to classify the detected arrhythmia according at least to;
(1) a sequence in which a heart contraction depolarization is received at the electrodes, and (2) a time difference value between reception of the heart contraction depolarization at sequentially adjacent pairs of electrodes;
a therapy map, providing an antiarrhythmia therapy corresponding to an arrhythmia classification;
a control signal, issued to the energy output circuit, to deliver a selected antiarrhythmia therapy corresponding to the arrhythmia classification, the control signal providing information to instruct the energy output circuit to escalate to deliver a shock if other therapies fail to succeed at treating the arrhythmia after a predetermined number of attempts; and
a success estimate for the delivered antiarrhythmia therapy, the success estimate updated based on whether the delivered antiarrhythmia therapy was successful at treating the arrhythmia. - View Dependent Claims (31, 32)
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Specification