Cardiac rhythm management system selecting A-V delay based on interval between atrial depolarization and mitral valve closure
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United States of America Patent
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Jul 17, 2007
Grant Date -
Feb 5, 2004
app pub date -
Aug 1, 2003
filing date -
May 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cardiac rhythm management system selects an atrioventricular (A-V) delay based on a time-interval between an atrial depolarization and mitral valve closure (MVC). For several different A-V delays, the system measures time intervals between atrial depolarizations (i.e., sensed or paced P-waves) and accelerometer-detected MVCs. Based on this information, the system selects a particular A-V delay for improving cardiac output during subsequent delivery of cardiac rhythm management therapy.
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