Use of mechanical restitution to predict hemodynamic response to a rapid ventricular rhythm
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United States of America Patent
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Issued Date -
Jun 8, 2006
app pub date -
Dec 3, 2004
filing date -
Dec 3, 2004
priority date (Note) -
Abandoned
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Abstract
An implantable cardiac stimulation device and associated method for predicting the hemodynamic response to a rapid heart rhythm. The system includes an implantable cardiac stimulation device and associated sensors of electrical and mechanical heart function. The associated method includes measuring a mechanical restitution (MR) parameter or surrogate thereof, performing a comparative analysis of the MR parameter, and predicting an unstable or stable hemodynamic response to a rapid heart rate based on the comparative analysis. If an unstable hemodynamic response to a rapid rhythm is predicted, a more aggressive menu of arrhythmia therapies may be programmed to treat tachycardia. If a stable hemodynamic response is predicted, a less aggressive menu of therapies may be programmed to treat tachycardia.
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