SYSTEMS AND METHODS FOR USING PULMONARY ARTERY PRESSURE FROM AN IMPLANTABLE SENSOR TO DETECT MITRAL REGURGITATION AND OPTIMIZE PACING DELAYS
First Claim
1. A method for use with an implantable pulmonary artery pressure sensor for implant within a patient, the method comprising:
- sensing a pulmonary artery pressure (PAP) signal representative of variations in PAP occurring during individual cardiac cycles within the patient;
detecting regurgitation peaks, if present, within the PAP signal; and
detecting mitral regurgitation (MR) based on the presence of the regurgitation peaks in the PAP signal.
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Accused Products
Abstract
Techniques are provided for use with a pulmonary artery pressure (PAP) monitor having an implantable PAP sensor. In one example, a PAP signal is sensed that is representative of beat-by-beat variations in PAP occurring during individual cardiac cycles of the patient. The PAP monitor detects peaks within the PAP signal corresponding to valvular regurgitation within the heart, then detects mitral regurgitation (MR) based on the peaks. In other examples, the PAP monitor optimizes pacing parameters based on the PAP signal and corresponding electrical cardiac signals. Examples are provided where the PAP monitor is an external system and other examples are provided where the PAP monitor is a component of an implantable cardiac rhythm management device.
20 Citations
27 Claims
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1. A method for use with an implantable pulmonary artery pressure sensor for implant within a patient, the method comprising:
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sensing a pulmonary artery pressure (PAP) signal representative of variations in PAP occurring during individual cardiac cycles within the patient; detecting regurgitation peaks, if present, within the PAP signal; and detecting mitral regurgitation (MR) based on the presence of the regurgitation peaks in the PAP signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for use with an implantable pulmonary artery pressure sensor for implant within a patient, the system comprising:
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a pulmonary artery pressure (PAP) signal input system operative to receive PAP signals from the PAP sensor wherein the PAP signal is representative of variations in PAP occurring during individual cardiac cycles of the patient; a regurgitation peak detector operative to detect regurgitation peaks, if present, within the PAP signal; and a mitral regurgitation (MR) detector operative to detect MR in the patient based on the regurgitation peaks in the PAP signal.
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25. A system for use with an implantable pulmonary artery pressure sensor for implant within a patient, the system comprising:
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means for sensing a pulmonary artery pressure (PAP) signal representative of variations in PAP occurring during cardiac cycles of the patient; means for detecting regurgitation peaks, if present, within the PAP signal; and means for detecting mitral regurgitation (MR) in the patient based on the MR peaks in the PAP signal.
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26. A method for use with for use with an implantable cardiac rhythm management device (CRMD) equipped with an implantable pulmonary artery pressure sensor, the method comprising:
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sensing a pulmonary artery pressure (PAP) signal representative of variations in PAP occurring during a cardiac cycle of the patient; sensing an electrical cardiac signal corresponding to the cardiac cycle; comparing the PAP signal and the electrical cardiac signal to detect intervals between selected events within the PAP signal and selected events within the electrical cardiac signal; and adjusting a cardiac pacing parameter based on a comparison of the intervals between the events within the PAP signal and the events within the corresponding electrical cardiac signal.
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27. A system for use with an implantable cardiac rhythm management device (CRMD) equipped with an implantable pulmonary artery pressure sensor, the system comprising:
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a pulmonary artery pressure (PAP) signal input system operative to receive PAP signals from the PAP sensor wherein the PAP signal is representative of variations in PAP occurring during individual cardiac cycles of the patient; an electrical cardiac signal sensing system operative to sense an electrical cardiac signal corresponding to the cardiac cycle; a PAP-based pacing parameter adjustment system operative to compare the PAP signal and the electrical cardiac signal to detect intervals between selected events within the PAP signal and selected events within the electrical cardiac signal and further operative to adjust a cardiac pacing parameter based on a comparison of intervals.
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Specification