Method and apparatus for detecting fibrillation using cardiac local impedance
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United States of America Patent
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Feb 15, 2011
Grant Date -
Apr 24, 2008
app pub date -
Oct 19, 2006
filing date -
Oct 19, 2006
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Abstract
A cardiac rhythm management (CRM) system detects tachyarrhythmia using cardiac local impedance indicative of cardiac local wall motion. A cardiac local impedance signal indicative of an impedance of a cardiac region is sensed by using a pair of bipolar electrodes placed in that cardiac region. Tachyarrhythmia such as VF is detected by analyzing one or more cardiac local impedance signals sensed in one or more cardiac regions.
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