Use of accelerometer signal to augment ventricular arrhythmia detection
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United States of America Patent
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Oct 31, 2006
Grant Date -
Nov 11, 2004
app pub date -
May 9, 2003
filing date -
May 9, 2003
priority date (Note) -
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Abstract
A system and method for detecting and discriminating atrial arrhythmias based on mechanical signals of cardiac wall motion and electrical signals of cardiac depolarizations. A mechanical event rate determined from sensed mechanical events is used to corroborate an electrical event rate determined from sensed EGM or ECG signals to classify the heart rhythm. If the event rates are not correlated, other parameterized data from the mechanical signal and electrical signal are evaluated to detect evidence of an arrhythmia. If electrical and mechanical event data do not corroborate a common arrhythmia condition, electrical and mechanical sensing parameters may be adjusted.
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