Optimization of pacing parameters based on measurement of acoustic noise
First Claim
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1. A method of optimizing a pacing mode of a cardiac pacemaker or a pacemaker/defibrillator for a patient, comprising the steps of:
- (a) providing a cardiac pacemaker or pacemaker/defibrillator having a plurality of programmable parameters, said pacemaker or pacemaker/defibrillator being coupled to a patient'"'"'s heart for delivering pacing pulses thereto in accordance with selected programmable parameters,(b) measuring total acoustic noise (TAN) on a beat-by-beat basis while pacing the patient'"'"'s heart over a range of values for each of the plurality of parameters;
(c) storing the TAN values measured in step (b) and the values of each of the plurality of parameters with which the TAN value is associated;
(d) determining from the stored TAN values which of the plurality of parameters are associated with the minimum TAN values; and
(e) programming the pacemaker or pacemaker/defibrillator with the parameters determined in step (d).
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Abstract
Hemodynamic performance of the heart as a pump is optimized by using an accelerometer and signal processing circuitry to measure total acoustic noise (TAN) over predetermined time periods when a pacemaker is made to function in a variety of modes. By detecting the particular mode associated with minimum TAN, the optimum pacing mode is arrived at.
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4 Claims
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1. A method of optimizing a pacing mode of a cardiac pacemaker or a pacemaker/defibrillator for a patient, comprising the steps of:
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(a) providing a cardiac pacemaker or pacemaker/defibrillator having a plurality of programmable parameters, said pacemaker or pacemaker/defibrillator being coupled to a patient'"'"'s heart for delivering pacing pulses thereto in accordance with selected programmable parameters, (b) measuring total acoustic noise (TAN) on a beat-by-beat basis while pacing the patient'"'"'s heart over a range of values for each of the plurality of parameters; (c) storing the TAN values measured in step (b) and the values of each of the plurality of parameters with which the TAN value is associated; (d) determining from the stored TAN values which of the plurality of parameters are associated with the minimum TAN values; and (e) programming the pacemaker or pacemaker/defibrillator with the parameters determined in step (d). - View Dependent Claims (2, 3, 4)
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Specification