Pacing output determination based on selected capture threshold values
First Claim
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1. A method of adjusting a pacing energy delivered to a heart, comprising:
- performing a plurality of capture threshold tests that measure a plurality of capture thresholds of the heart;
selecting one or more of the plurality of measured capture thresholds, wherein one of the selected one or more capture thresholds is higher relative to other measured capture thresholds of the plurality of capture threshold tests;
adjusting the pacing energy based on the one or more selected capture thresholds including decreasing the pacing energy in response to measuring two or more capture thresholds of the plurality of measured capture thresholds that are less than a value used to set a current pacing energy and increasing the pacing energy in response to measuring at least one capture threshold of the plurality of measured capture thresholds that is greater than the value used to set the current pacing energy.
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Abstract
Adjusting the pacing energy involves performing a plurality of capture threshold tests, each capture threshold test measuring a capture threshold of the heart. One or more measured captured thresholds are selected, including at least one capture threshold that is higher relative to other measured capture thresholds acquired by the plurality of capture threshold tests. The pacing energy is adjusted based on the one or more selected capture thresholds.
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Citations
24 Claims
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1. A method of adjusting a pacing energy delivered to a heart, comprising:
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performing a plurality of capture threshold tests that measure a plurality of capture thresholds of the heart; selecting one or more of the plurality of measured capture thresholds, wherein one of the selected one or more capture thresholds is higher relative to other measured capture thresholds of the plurality of capture threshold tests; adjusting the pacing energy based on the one or more selected capture thresholds including decreasing the pacing energy in response to measuring two or more capture thresholds of the plurality of measured capture thresholds that are less than a value used to set a current pacing energy and increasing the pacing energy in response to measuring at least one capture threshold of the plurality of measured capture thresholds that is greater than the value used to set the current pacing energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pacing energy adjustment system, comprising:
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capture threshold testing circuitry configured to perform a plurality of capture threshold tests to measure a plurality of capture thresholds; and a processor, coupled to the capture threshold testing circuitry, the processor configured to select at least one measured captured threshold of the plurality of measured capture thresholds that is higher relative to others of the plurality of measured capture thresholds acquired by the plurality of capture threshold tests and to adjust a pacing energy based on the at least one selected capture threshold by increasing the pacing energy if at least one of the plurality of measured capture thresholds is greater than a value used to set a current pacing energy and to decrease the pacing energy if more than one of the plurality of measured capture thresholds are lower than the value used to set the current pacing energy. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for setting pacing output energy, comprising:
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capture threshold circuitry configured to perform a plurality of capture threshold tests to measure a plurality of capture thresholds of the heart; means for selecting one or more measured captured thresholds, wherein one of the selected one or more measured capture thresholds is higher relative to other measured capture thresholds of the plurality of capture threshold tests; means for increasing the pacing energy based on the one or more selected capture thresholds in response to measuring at least one measured capture threshold of the plurality of capture thresholds that is greater than a previous value used to set a current pacing energy; and means for decreasing the pacing energy in response to measuring more than one capture threshold of the plurality of measured capture thresholds that is less than the value used to set the current pacing energy. - View Dependent Claims (23, 24)
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Specification