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System and Method to Monitor Ejection Time and QT Interval to Alert Patients Before Syncopal Events

  • US 20090270748A1
  • Filed: 04/24/2008
  • Published: 10/29/2009
  • Est. Priority Date: 04/24/2008
  • Status: Active Grant
First Claim
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1. A method for predicting syncope for use in an implantable medical device, comprising:

  • sensing a physiological signal;

    determining a time interval corresponding to cardiac ejection time from the physiological signal;

    detecting a change in the time interval;

    predicting syncope in response to the detected change; and

    generating a patient alert in response to the predicted syncope.

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