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Arrhythmia prediction based on heart rate turbulence

  • US 9,907,962 B2
  • Filed: 10/29/2009
  • Issued: 03/06/2018
  • Est. Priority Date: 10/29/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • sensing cardiac contractility of a heart;

    deriving a plurality of values of an interval between cardiac contractions of the heart from the sensed cardiac contractility;

    measuring heart rate turbulence based on the interval values derived from the sensed cardiac contractility;

    predicting an occurrence of a tachyarrhythmia based on the measured heart rate turbulence; and

    delivering a cardiac stimulation therapy to the heart in response to predicting the occurrence of the tachyarrhythmia, wherein the cardiac stimulation therapy is configured to prevent the occurrence of the tachyarrhythmia.

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