Methods for the determination of T-shock vulnerable window from far-field electrograms in implantable cardioverter defibrillators
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United States of America Patent
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Oct 22, 2013
Grant Date -
Jan 28, 2010
app pub date -
Jul 24, 2008
filing date -
Jul 24, 2008
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Abstract
Methods for determination of timing for electrical shocks to the heart to determine shock strength necessary to defibrillate a fibrillating heart. The timing corresponds the window of most vulnerability in the heart, which occurs during the T-wave of a heartbeat. Using a derivatized T-wave representation, the timing of most vulnerability is determined by a center of the area method, peak amplitude method, width method, or other similar methods. Devices are similarly disclosed embodying the methods of the present disclosure.
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