His-bundle capture verification and monitoring
First Claim
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1. A system comprising:
- a cardiac stimulation circuit configured to generate a stimulation energy to provide His-bundle stimulation for multiple cardiac cycles;
a cardiac sensing circuit configured to receive electrical information from the heart over at least a portion of the multiple cardiac cycles;
a processor configured to determine characteristics of the received electrical information from the heart over the at least a portion of the multiple cardiac cycles using the received electrical information, the characteristics corresponding to individual ones of the multiple cardiac cycles;
wherein the processor is configured to classify each cardiac cycle of the multiple cardiac cycles as a capture type using the respective determined characteristics, wherein the classifying includes distinguishing, for each cardiac cycle, a His-bundle capture type from (1) a myocardium-cell-to-myocardium-cell capture type, (2) an AV node capture type, and (3) a fusion capture type, the fusion capture type including at least partial intrinsic cardiac function fused with at least one of partial His-bundle capture, myocardium-cell-to-myocardium-cell capture, and AV node capture; and
wherein the processor is configured to identify a His-bundle capture percentage using information about the classified cardiac cycles.
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Abstract
This document discusses, among other things, a system and method for generating a stimulation energy to provide His-bundle stimulation for a cardiac cycle, receiving electrical information from the heart over at least a portion of the cardiac cycle, determining a characteristic of at least a portion of the received electrical information for the cardiac cycle, and classifying the cardiac cycle using the determined characteristic.
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Citations
18 Claims
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1. A system comprising:
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a cardiac stimulation circuit configured to generate a stimulation energy to provide His-bundle stimulation for multiple cardiac cycles; a cardiac sensing circuit configured to receive electrical information from the heart over at least a portion of the multiple cardiac cycles; a processor configured to determine characteristics of the received electrical information from the heart over the at least a portion of the multiple cardiac cycles using the received electrical information, the characteristics corresponding to individual ones of the multiple cardiac cycles; wherein the processor is configured to classify each cardiac cycle of the multiple cardiac cycles as a capture type using the respective determined characteristics, wherein the classifying includes distinguishing, for each cardiac cycle, a His-bundle capture type from (1) a myocardium-cell-to-myocardium-cell capture type, (2) an AV node capture type, and (3) a fusion capture type, the fusion capture type including at least partial intrinsic cardiac function fused with at least one of partial His-bundle capture, myocardium-cell-to-myocardium-cell capture, and AV node capture; and wherein the processor is configured to identify a His-bundle capture percentage using information about the classified cardiac cycles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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a cardiac stimulation circuit configured to generate a stimulation energy to provide His-bundle stimulation for multiple cardiac cycles; a cardiac sensing circuit configured to receive electrical information from the heart over at least a portion of the multiple cardiac cycles; and a processor configured to determine characteristics of the received electrical information from the heart over the at least a portion of the multiple cardiac cycles using the received electrical information, the characteristics corresponding to individual ones of the multiple cardiac cycles; wherein the processor is configured to determine a His-bundle capture threshold using the determined characteristics; wherein the processor is configured to classify each cardiac cycle of the multiple cardiac cycles as a capture type using the respective determined characteristics, wherein the classifying includes distinguishing, for each cardiac cycle, a complete His-bundle capture type from a partial His-bundle capture type, and wherein the processor is configured to determine a His-bundle capture percentage, using information about the classified cardiac cycles; and when the His-bundle capture percentage is less than a threshold percentage, the processor is configured to determine a different His-bundle capture threshold.
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18. A system comprising:
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a cardiac stimulation circuit configured to generate a stimulation energy to provide His-bundle stimulation for multiple cardiac cycles; a cardiac sensing circuit configured to receive electrical information from the heart over at least a portion of the multiple cardiac cycles; and a processor configured to determine characteristics of the received electrical information from the heart over the at least a portion of the multiple cardiac cycles using the received electrical information, the characteristics corresponding to individual ones of the multiple cardiac cycles, wherein the characteristics of the received electrical information include characteristics of QRS complexes associated with respective ones of the multiple cardiac cycles; wherein the processor is configured to classify each cardiac cycle of the multiple cardiac cycles, using the respective determined characteristics, wherein the classifying includes distinguishing, for each cardiac cycle, a complete His-bundle capture type from a partial His-bundle capture type.
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Specification