DYNAMIC DEVICE THERAPY CONTROL FOR TREATING POST MYOCARDIAL INFARCTION PATIENTS
First Claim
Patent Images
1. An implantable pacemaker, comprising:
- a pacing circuit to deliver pacing pulses;
an activity sensor to sense an activity level; and
a pacing controller coupled to the pacing circuit and the activity sensor, the pacing controller including;
a myocardial infarction detector adapted to detect a signal indicative of a myocardial infarction event; and
a dynamic pacing parameter controller adapted to be activated in response to the detection of the signal indicative of the myocardial infarction event and to select one set of one or more pacing parameter values from sets of one or more pacing parameter values using the sensed activity level after being activated.
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Abstract
A cardiac rhythm management system includes an implantable device executing a dynamic pacing algorithm after an myocardial infarction (MI) event. The dynamic pacing algorithm dynamically adjusts one or more pacing parameters based on a person'"'"'s gross physical activity level. Examples of the one or more pacing parameters include atrioventricular pacing delays and pacing channels/sites. The dynamic pacing algorithm provides for improved hemodynamic performance when a person'"'"'s metabolic need is high, and post MI remodeling control when the person'"'"'s metabolic need is low.
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Citations
20 Claims
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1. An implantable pacemaker, comprising:
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a pacing circuit to deliver pacing pulses;
an activity sensor to sense an activity level; and
a pacing controller coupled to the pacing circuit and the activity sensor, the pacing controller including;
a myocardial infarction detector adapted to detect a signal indicative of a myocardial infarction event; and
a dynamic pacing parameter controller adapted to be activated in response to the detection of the signal indicative of the myocardial infarction event and to select one set of one or more pacing parameter values from sets of one or more pacing parameter values using the sensed activity level after being activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for operating an implantable pacemaker, the method comprising:
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detecting a signal indicative of a myocardial infarction event;
executing a dynamic pacing algorithm in response to the detection of the signal indicative of the myocardial infarction event, the executing including;
sensing an activity level;
comparing the activity level to a predetermined threshold;
selecting a first set of pacing parameter values if the activity level exceeds the predetermined threshold; and
selecting a second set of pacing parameter values if the activity level does not exceed the predetermined threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification