Combination of feedback on mechanical and electrical resynchronization to select therapy parameters
First Claim
1. A method for selecting a pacing therapy site, comprising:
- pacing at each of a plurality of pacing sites along a heart chamber;
acquiring from a signal of mechanical heart activity a change from a baseline mechanical activity during the pacing at each of the plurality of pacing sites along the heart chamber;
acquiring from a signal of electrical heart activity a change from a baseline electrical activity during the pacing at each of the plurality of pacing sites along the heart chamber;
sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity;
sorting the plurality of pacing sites in a second order based upon the changes in electrical heart activity; and
selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.
1 Assignment
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Accused Products
Abstract
A system and method select a pacing site for a cardiac pacing therapy. A change from a baseline mechanical activity is extracted from a signal of mechanical heart activity during pacing at each one of multiple pacing sites along a heart chamber. A change from a baseline electrical activity is extracted from a signal of electrical heart activity during pacing at each of the of pacing sites. The pacing sites are sorted in a first order based upon the changes in mechanical heart activity and in a second order based upon the changes in electrical heart activity. A pacing site is selected from the multiple pacing sites as a common pacing site between the first order and the second order.
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Citations
30 Claims
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1. A method for selecting a pacing therapy site, comprising:
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pacing at each of a plurality of pacing sites along a heart chamber; acquiring from a signal of mechanical heart activity a change from a baseline mechanical activity during the pacing at each of the plurality of pacing sites along the heart chamber; acquiring from a signal of electrical heart activity a change from a baseline electrical activity during the pacing at each of the plurality of pacing sites along the heart chamber; sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity; sorting the plurality of pacing sites in a second order based upon the changes in electrical heart activity; and selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for selecting a pacing therapy site, comprising:
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acquiring from a signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of a plurality of pacing sites along a heart chamber; acquiring from a signal of electrical heart activity a change from a baseline electrical activity during the pacing at each of the plurality of pacing sites along the heart chamber; sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity; sorting the plurality of pacing sites in a second order based upon the changes in electrical heart activity; and selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order; and further comprising delivering cardiac resynchronization therapy using the selected pacing site. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A medical device system for selecting a pacing therapy site, comprising:
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a plurality of electrodes for producing a signal of electrical heart activity and for delivering cardiac pacing pulses to a plurality of pacing sites along a heart chamber; a sensor for producing a signal of mechanical heart activity; a processor means for acquiring from the signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of the plurality of pacing sites and for acquiring from the signal of electrical heart activity a change from a baseline electrical activity during pacing at each of the plurality of pacing sites; a processor sorting means for sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity and in a second order based upon the changes in electrical heart activity; and a processor selecting means for selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A non-transitory, computer-readable storage medium comprising instructions that, when executed, cause a processor included in a medical device system to:
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extract from a signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of a plurality of pacing sites along a heart chamber; extract from a signal of electrical heart activity a change from a baseline electrical activity during pacing at each of the plurality of pacing sites in the heart chamber; sort the plurality of pacing sites in a first order based upon the changes in mechanical heart activity and in a second order based upon the changes in electrical heart activity; and select a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.
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30. An apparatus for selecting a pacing therapy site, comprising:
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processing means acquiring from a signal of mechanical heart activity a change from a baseline mechanical activity during pacing at each of a plurality of pacing sites along a heart chamber; processing means for acquiring from a signal of electrical heart activity a change from a baseline electrical activity during pacing at each of the plurality of pacing sites along the heart chamber; sorting means for sorting the plurality of pacing sites in a first order based upon the changes in mechanical heart activity; sorting means for sorting the plurality of pacing sites in a second order based upon the changes in electrical heart activity; and processing means selecting a pacing site from the plurality of pacing sites as a common pacing site between the first order and the second order.
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Specification