Automatic selection from multiple cardiac optimization protocols
First Claim
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1. A method for setting operating parameters of a cardiac rhythm management device, comprising:
- determining the degree of ventricular asynchrony existing in a patient; and
selecting between a parameter optimization algorithm that maximizes cardiac output and a parameter optimization algorithm that maximizes myocardial contractility based upon the degree of ventricular asynchrony.
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Abstract
A method and system for setting the operating parameters of a cardiac rhythm management device in which a plurality of parameter optimization algorithms are available. A measured feature of an electrophysiological signal such as QRS width has been shown to be useful in selecting among certain parameter optimization algorithms.
45 Citations
32 Claims
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1. A method for setting operating parameters of a cardiac rhythm management device, comprising:
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determining the degree of ventricular asynchrony existing in a patient; and
selecting between a parameter optimization algorithm that maximizes cardiac output and a parameter optimization algorithm that maximizes myocardial contractility based upon the degree of ventricular asynchrony. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32)
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16. A system for setting operating parameters of a cardiac rhythm management device, comprising:
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a cardiac algorithm optimizer for determining the degree of ventricular asynchrony existing in a patient and selecting between a parameter optimization algorithm that maximizes cardiac output and a parameter optimization algorithm that maximizes myocardial contractility based upon the degree of ventricular asynchrony; and
,a controller for executing the selected parameter optimization algorithm.
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30. The system of claim 39 wherein the pulse pressure optimization algorithm and the contractility maximizing algorithm are both selected if the QRS interval duration is classified as long and neither the right ventricle is the sole paced chamber nor is the LV offset greater than zero.
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