System and method for assessing cardiac performance through cardiac vibration monitoring
First Claim
1. A system for evaluating cardiac performance relative to performance of an intrathoracic pressure maneuver, comprising:
- an implantable medical device to indirectly sense heart sounds by directly collecting cardiac vibration measures; and
an analysis component to evaluate cardiac functional changes to the heart sounds in response to performance of an intrathoracic pressure maneuver.
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Abstract
A system and method for assessing cardiac performance through cardiac vibration monitoring is described. Cardiac vibration measures are directly collected through an implantable medical device. Cardiac events including at least one first heart sound reflected by the cardiac vibration measures are identified. The first heart sound is correlated to cardiac dimensional measures relative to performance of an intrathoracic pressure maneuver. The cardiac dimensional measures are grouped into at least one measures set corresponding to a temporal phase of the intrathoracic pressure maneuver. The at least one cardiac dimensional measures set is evaluated against a cardiac dimensional trend for the corresponding intrathoracic pressure maneuver temporal phase to represent cardiac performance.
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Citations
38 Claims
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1. A system for evaluating cardiac performance relative to performance of an intrathoracic pressure maneuver, comprising:
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an implantable medical device to indirectly sense heart sounds by directly collecting cardiac vibration measures; and
an analysis component to evaluate cardiac functional changes to the heart sounds in response to performance of an intrathoracic pressure maneuver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for evaluating cardiac performance relative to performance of an intrathoracic pressure maneuver, comprising:
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indirectly sensing heart sounds by directly collecting cardiac vibration measures through an implantable medical device; and
evaluating cardiac functional changes to the heart sounds in response to performance of an intrathoracic pressure maneuver. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for assessing cardiac performance through cardiac vibration monitoring, comprising:
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an implantable medical device to directly collect cardiac vibration measures;
a correlation component to identify cardiac events comprising at least one first heart sound reflected by the cardiac vibration measures, to correlate the first heart sound to cardiac dimensional measures relative to performance of an intrathoracic pressure maneuver, and to group the cardiac dimensional measures into at least one measures set corresponding to a temporal phase of the intrathoracic pressure maneuver; and
an analysis component to evaluate the at least one cardiac dimensional measures set against a cardiac dimensional trend for the corresponding intrathoracic pressure maneuver temporal phase to represent cardiac performance. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for assessing cardiac performance through cardiac vibration monitoring, comprising:
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directly collecting cardiac vibration measures through an implantable medical device;
identifying cardiac events comprising at least one first heart sound reflected by the cardiac vibration measures;
correlating the first heart sound to cardiac dimensional measures relative to performance of an intrathoracic pressure maneuver;
grouping the cardiac dimensional measures into at least one measures set corresponding to a temporal phase of the intrathoracic pressure maneuver; and
evaluating the at least one cardiac dimensional measures set against a cardiac dimensional trend for the corresponding intrathoracic pressure maneuver temporal phase to represent cardiac performance. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification