Pacing output determination based on selected capture threshold values
First Claim
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1. A method of operating a cardiac device to adjust a pacing energy delivered to a heart, comprising:
- performing a plurality of capture threshold tests that respectively measure a plurality of capture thresholds of the heart;
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
Approaches for adjusting the pacing energy delivered by a pacemaker are provided. 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.
36 Citations
20 Claims
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1. A method of operating a cardiac device to adjust a pacing energy delivered to a heart, comprising:
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performing a plurality of capture threshold tests that respectively measure a plurality of capture thresholds of the heart; 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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cardiac electrodes electrically coupled to a heart; 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 decrease 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 to increase 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 (13, 14, 15, 16, 17, 18, 19, 20)
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Specification