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Methods and systems for detecting the presence of T-wave alternans

  • US 7,881,792 B1
  • Filed: 09/16/2005
  • Issued: 02/01/2011
  • Est. Priority Date: 09/16/2005
  • Status: Expired due to Fees
First Claim
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1. In an implantable system, a method for detecting T-wave alternans, comprising:

  • (a) stimulating a patient'"'"'s vagus nerve to thereby simulate at least one premature contraction of the ventricles;

    (b) measuring at least one metric of T-waves in a specified number of beats that follow each simulated premature contraction of the ventricles that is caused by stimulating the patients vagus nerve; and

    (c) determining, based on the measured T-wave metrics, whether T-wave alternans are present.

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