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Arrhythmia discrimination based on determination of rate dependency

  • US 9,119,547 B2
  • Filed: 01/12/2010
  • Issued: 09/01/2015
  • Est. Priority Date: 12/20/2005
  • Status: Active Grant
First Claim
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1. A method of operating a medical device, comprising:

  • sensing supraventricular tachycardia (SVT) waveforms during one or more SVT episodes;

    measuring heart rates associated with the SVT waveforms;

    characterizing morphologies of the SVT waveforms; and

    determining whether the morphologies of the SVT waveforms are dependent or independent with respect to heart rate comprising determining one or more rates at which a change in morphology occurs, wherein at least one of characterizing and determining is implemented at least in part by circuitry.

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