Multi-parameter arrhythmia discrimination
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United States of America Patent
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May 11, 2010
Grant Date -
Dec 20, 2007
app pub date -
May 15, 2007
filing date -
Apr 11, 2003
priority date (Note) -
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Abstract
An arrhythmia discrimination device and method involves receiving electrocardiogram signals and non-electrophysiologic signals at subcutaneous locations. Both the electrocardiogram signals and non-electrophysiologic signals are used to discriminate between normal sinus rhythm and an arrhythmia. An arrhythmia may be detected using electrocardiogram signals, and verified using the non-electrophysiologic signals. A detection window may be initiated in response to receiving the electrocardiogram signal, and used to determine whether the non-electrophysiologic signal is received at a time falling within the detection window. Heart rates may be computed based on both the electrocardiogram signals and non-electrophysiologic signals. The rates may be used to discriminate between normal sinus rhythm and an arrhythmia, and used to determine absence of an arrhythmia.
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