Capture verification using an evoked response reference
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United States of America Patent
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Mar 9, 2010
Grant Date -
Jul 5, 2007
app pub date -
Mar 13, 2007
filing date -
Dec 31, 2002
priority date (Note) -
Expired
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Abstract
A method and system for verifying capture in the heart involves the use of pacing artifact templates. One or more pacing artifact templates characterizing a post pace artifact signal associated with a particular pace voltage or range of voltages are provided. A pacing artifact template is canceled from a cardiac signal sensed following a pacing pulse. Capture is detected by comparing the pacing artifact canceled cardiac signal to an evoked response reference. Fusion/pseudofusion detection involves determining a correlation between a captured response template and a sensed cardiac signal.
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