Method and apparatus for optimizing cardiac resynchronization therapy
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United States of America Patent
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Mar 22, 2005
Grant Date -
Sep 23, 2004
app pub date -
Mar 20, 2003
filing date -
Mar 20, 2003
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Abstract
A method and apparatus for optimizing cardiac resynchronization therapy are provided. An iterative optimization procedure is performed to test the systolic hemodynamic effects of varying A-V-V timing schemes. The hemodynamic effect is assessed based on a surrogate of stroke volume. The stroke volume surrogate is derived from a sensor signal proportional to the blood pressure in the aorta or a major artery. The A-V-V timing scheme corresponding to the greatest stroke volume, as indicated by the stroke volume surrogate, is identified and automatically programmed to maintain optimal A-V-V settings acutely and chronically.
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