Suppression of high rate pacing for reducing myocardial ischemic irritability
First Claim
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1. A method of controlling delivery of therapy in a medical device, comprising:
- sensing physiologic signals of a patient;
delivering the therapy in response to the sensed signals;
determining the presence of cardiac insult in response to the delivered therapy; and
adjusting a pacing rate associated with the delivering of the therapy in response to determining the presence of cardiac insult.
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Abstract
A medical device capable of delivering automatic rate-adjusting pacing therapies is provided having an adjustable upper rate limit responsive to an indication of myocardial irritability. The device, which may be embodied as a pacemaker, a pacemaker/cardioverter/defibrillator, or the like, responds to the detection of an arrhythmia as an indicator of myocardial irritability by adjusting an upper rate limit. The adjusted upper rate limit is applied as the maximum allowable pacing rate during delivery of any pacing therapies previously defined as “long-term” pacing therapies.
66 Citations
18 Claims
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1. A method of controlling delivery of therapy in a medical device, comprising:
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sensing physiologic signals of a patient;
delivering the therapy in response to the sensed signals;
determining the presence of cardiac insult in response to the delivered therapy; and
adjusting a pacing rate associated with the delivering of the therapy in response to determining the presence of cardiac insult. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical device for delivering therapy to a patient, comprising:
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a plurality of electrodes sensing physiologic signals of a patient and delivering the therapy;
a control unit, coupled to the plurality of electrodes, controlling deliver of the therapy in response to the sensed signals;
a microprocessor, coupled to the control unit, determining the presence of cardiac insult in response to the delivered therapy, wherein the control unit adjusts a pacing rate associated with the delivering of the therapy in response to the microprocessor determining the presence of cardiac insult. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification