Method and apparatus for monitoring conduction times in a bi-chamber pacing system
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United States of America Patent
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Dec 23, 2003
Grant Date -
Jan 16, 2003
app pub date -
Jul 16, 2001
filing date -
Jul 16, 2001
priority date (Note) -
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Abstract
A method and apparatus for deriving trend data indicative of the state of heart failure in a cardiac pacing system capable of delivering electrical stimulus to first and second ventricular sites that includes a timing circuit to begin measuring a time interval from a first ventricular event occurring at a selected one of the first and second ventricular sites, a sensing circuit coupled to the timing circuit to detect a second ventricular depolarization in the other of the first and second ventricular sites, and a storage device coupled to the timing circuit to store one or more elapsed conduction times that may be utilized as an indicator of the state of heart failure.
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