Pacing optimization based on changes in pulse amplitude and pulse amplitude variability
First Claim
Patent Images
1. A method for performing pacing interval optimization, comprising:
- (a) producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters;
(b) obtaining measures of pulse amplitude from the signal; and
(c) performing pacing interval optimization based on the measures of pulse amplitude by selecting one of the sets of pacing parameters corresponding to a greatest measure of pulse amplitude as a preferred set.
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Abstract
A signal indicative of cardiac contractions of a patient'"'"'s heart is produced, as the patient'"'"'s heart is paced using different sets of pacing interval parameters. Measures of pulse amplitude are obtained from the signal. Pacing interval optimization is performed based on the measures of pulse amplitude.
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Citations
23 Claims
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1. A method for performing pacing interval optimization, comprising:
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(a) producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal; and (c) performing pacing interval optimization based on the measures of pulse amplitude by selecting one of the sets of pacing parameters corresponding to a greatest measure of pulse amplitude as a preferred set. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for performing pacing interval optimization, comprising:
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(a) producing a signal using a non-implanted transducer that measures changes in blood pressure, the signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal; and (c) performing pacing interval optimization based on the measures of pulse amplitude. - View Dependent Claims (8, 9)
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10. A method for performing pacing interval optimization, comprising:
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(a) producing a photo-plethysmography signal using a light source and a detector indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal; and (c) performing pacing interval optimization based on the measures of pulse amplitude. - View Dependent Claims (11, 12)
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13. A method for performing pacing interval optimization, comprising:
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(a) producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal; and (c) performing pacing interval optimization based on the measures of pulse amplitude by selecting one of the sets of pacing parameters, corresponding to a greatest pulse amplitude variability, as a preferred set. - View Dependent Claims (14)
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15. A system for performing pacing interval optimization, comprising:
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a pacing circuit to pace a patient'"'"'s heart using different sets of pacing interval parameters; a photo-plethysmography sensor for producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; and a processor adapted to obtain measures of pulse amplitude from the signal, and to perform pacing interval optimization based on the measures of pulse amplitude. - View Dependent Claims (16)
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17. A method for performing pacing interval optimization, comprising:
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(a) producing an arterial pressure signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal; and (c) performing pacing interval optimization based on the measures of pulse amplitude.
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18. A method for performing pacing interval optimization, comprising:
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(a) producing a signal using an ultrasound transducer indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal; and (c) performing pacing interval optimization based on the measures of pulse amplitude.
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19. A method for performing pacing interval optimization, comprising:
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(a) producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal by averaging multiple pulse amplitudes measured over a period of time during which the patient'"'"'s heart is paced using one of the sets of pacing interval parameters; and (c) performing pacing interval optimization based on the measures of pulse amplitude.
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20. A method for performing pacing interval optimization, comprising:
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(a) producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; (b) obtaining measures of pulse amplitude from the signal each comprising a measure of pulse amplitude variability over a period of time during which the patient'"'"'s heart is paced using one of the sets of pacing interval parameters; and (c) performing pacing interval optimization based on the measures of pulse amplitude.
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21. A system for performing pacing interval optimization, comprising:
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a pacing circuit to pace a patient'"'"'s heart using different sets of pacing interval parameters; a pressure transducer for producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; and a processor adapted to obtain measures of pulse amplitude from the signal, and to perform pacing interval optimization based on the measures of pulse amplitude.
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22. A system for performing pacing interval optimization, comprising:
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a pacing circuit to pace a patient'"'"'s heart using different sets of pacing interval parameters; a strain gauge for producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; and a processor adapted to obtain measures of pulse amplitude from the signal, and to perform pacing interval optimization based on the measures of pulse amplitude.
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23. A system for performing pacing interval optimization, comprising:
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a pacing circuit to pace a patient'"'"'s heart using different sets of pacing interval parameters; an ultrasound transducer for producing a signal indicative of cardiac contractions of a patient'"'"'s heart, as the patient'"'"'s heart is paced using different sets of pacing interval parameters; and a processor adapted to obtain measures of pulse amplitude from the signal, and to perform pacing interval optimization based on the measures of pulse amplitude.
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Specification