Pacing mode to reduce effects of orthostatic hypotension and syncope
First Claim
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1. A method comprising:
- determining a position parameter indicative of a change in a patient'"'"'s position;
determining a pressure parameter indicative of a patient'"'"'s blood pressure; and
selectively administering pacing therapy to the patient based on the position parameter and the pressure parameter.
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Abstract
An implantable cardiac stimulation device is programmed to administer pacing therapy in response to a change in a patient'"'"'s position and a drop in blood pressure. The stimulation device is equipped with a position sensor to sense a position parameter indicative of when a patient changes from a supine position to an upright position and a pressure sensor to sense a pressure parameter indicative of a patient'"'"'s blood pressure. The device administers cardiac pacing therapy to the patient based on both the position parameter and the pressure parameter.
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Citations
61 Claims
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1. A method comprising:
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determining a position parameter indicative of a change in a patient'"'"'s position;
determining a pressure parameter indicative of a patient'"'"'s blood pressure; and
selectively administering pacing therapy to the patient based on the position parameter and the pressure parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of administering pacing therapy for orthostatic hypotension, comprising:
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detecting a change in a patient'"'"'s position from a supine position to an upright position;
detecting a drop in a patient'"'"'s blood pressure below a predefined threshold; and
adjusting a cardiac pacing rate from a first pacing rate to a second pacing rate effective to counteract effects of orthostatic hypotension in response to detection of the change in the patient'"'"'s position and the drop in the patient'"'"'s blood pressure. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of administering pacing therapy for vasovagal syncope, comprising:
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detecting a drop in a patient'"'"'s blood pressure below a predefined threshold; and
adjusting a cardiac pacing rate from a first pacing rate to a second pacing rate effective to counteract effects of vasovagal syncope in response to detection of the drop in the patient'"'"'s blood pressure. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A method comprising:
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increasing a pacing rate in a cardiac stimulation device from a first rate to a higher second rate when a patient experiences both (1) a change in position from a supine position to an upright position and (2) a drop in blood pressure below a predefined threshold; and
subsequently decreasing the pacing rate back toward the first rate. - View Dependent Claims (31, 32, 33)
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34. A cardiac stimulation device comprising:
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a position sensor to sense a position parameter indicative of changes in a patient'"'"'s position;
a pressure sensor to sense a pressure parameter indicative of a patient'"'"'s blood pressure;
a processor operably coupled to the position sensor and the pressure sensor, the processor being configured to determine when to administer cardiac pacing therapy to the patient based on the position parameter and the pressure parameter; and
a pacing generator configured to administer the cardiac pacing therapy as directed by the processor. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An implantable cardiac rhythm management device, comprising:
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position sensing means for sensing a change in a patient'"'"'s position from a supine position to an upright position;
pressure sensing means for sensing when a patient'"'"'s blood pressure drops below a predefined threshold; and
therapy delivery means, responsive to the position sensing means and the pressure sensing means, for generating cardiac stimulating pulses at an increased rate effective to treat orthostatic hypotension when the patient moves from a supine position to an upright position and the patient'"'"'s blood pressure drops below the predefined threshold. - View Dependent Claims (46, 47, 48, 49)
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50. An implantable cardiac rhythm management device, comprising:
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pressure sensing means for sensing when a patient'"'"'s blood pressure drops below a predefined threshold; and
therapy delivery means, responsive to the pressure sensing means, for generating cardiac stimulating pulses at an increased rate effective to treat vasovagal syncope when the patient'"'"'s blood pressure drops below the predefined threshold. - View Dependent Claims (51, 52, 53, 54)
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55. A cardiac stimulation device, comprising:
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position sensing means for sensing changes in a patient'"'"'s position;
pressure parameter sensing means for sensing a parameter indicative of a patient'"'"'s blood pressure; and
therapy administration means, response to the position sensing means and the pressure parameter sensing means, for administering cardiac pacing therapy to the patient based on the changes in the patient'"'"'s position and the parameter indicative of the patient'"'"'s blood pressure. - View Dependent Claims (56, 57, 58)
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59. A programmable cardiac stimulation device having a memory and a processor, the cardiac stimulation device being programmed to perform tasks comprising:
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administering pacing therapy to a patient when the patient experiences both (1) a change in position from a supine position to an upright position and (2) a drop in blood pressure below a predefined threshold; and
subsequently removing the pacing therapy in a systematic manner. - View Dependent Claims (60, 61)
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Specification