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System and method to monitor ejection time and QT interval to alert patients before syncopal events

  • US 8,688,201 B2
  • Filed: 04/24/2008
  • Issued: 04/01/2014
  • 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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