System and method for controlling implantable medical device parameters in response to atrial pressure attributes
First Claim
1. A method for controlling implantable medical device parameters, said method comprising:
- obtaining a left atrial pressure signal;
identifying at least one attribute of said left atrial pressure signal, said at least one attribute being indicative of cardiac performance; and
automatically adjusting at least one output parameter of an implantable medical device to enhance hemodynamic performance in response to said at least one attribute.
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Abstract
In an implantable medical device disclosed herein, a real-time left atrial pressure (“LAP”) signal obtained from a patient'"'"'s heart is used as a feedback control mechanism to adjust one or more device parameters. In accordance with one example embodiment of the invention, the device identifies specific characteristics and attributes of the LAP signal that correlate to hemodynamic performance, and adjusts the device parameters to optimize the LAP characteristics and attributes. The example device is a dual-chamber pacing system, the controlled operating parameter may include the atrioventricular pacing delay, and one LAP attribute suitable for controlling the atrioventricular pacing delay relates to time intervals of v-wave, a-wave, and/or c-wave characteristics of the LAP signal.
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Citations
21 Claims
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1. A method for controlling implantable medical device parameters, said method comprising:
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obtaining a left atrial pressure signal;
identifying at least one attribute of said left atrial pressure signal, said at least one attribute being indicative of cardiac performance; and
automatically adjusting at least one output parameter of an implantable medical device to enhance hemodynamic performance in response to said at least one attribute. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A dual-chamber pacing implantable medical device comprising:
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a data collection module configured to obtain a left atrial pressure signal from a patient;
a data processing module coupled to said data collection module, said data processing module being configured to identify at least one attribute of said left atrial pressure signal, and to correlate said at least one attribute to a hemodynamic status of said patient; and
a therapy module coupled to said data processing module, said therapy module being configured to automatically adjust at least one output parameter of a therapy signal in response to said at least one attribute. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A dual-chamber pacing implantable medical device comprising:
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means for obtaining a left atrial pressure signal of a patient;
means for identifying at least one attribute of said left atrial pressure signal, said at least one attribute being indicative of hemodynamic status of said patient; and
means for automatically adjusting at least one output parameter of a therapy signal in response to said at least one attribute. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification