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Detection of abnormal and induction of normal heart rate variability

  • US 5,718,235 A
  • Filed: 07/30/1996
  • Issued: 02/17/1998
  • Est. Priority Date: 10/06/1992
  • Status: Expired due to Term
First Claim
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1. A method of detecting abnormal heart rate variability comprising:

  • A) first recording a first subject'"'"'s RR or SOS intervals over substantially no less than 50 to substantially no more than 300 heart beat segments occurring with normal heart rate variability;

    B) characterizing the sharpness of histograms of said segments comprising the numbers of each of the RR intervals recorded versus each particular RR interval as a function of the Mode of each of said segments;

    C) second recording a second subject'"'"'s RR or SOS intervals over substantially no less than 50 to substantially no more than 300 heart beat segments;

    D) characterizing the sharpness of the histograms of said second subject'"'"'s RR interval variations as a function of the Mode of each of said segments; and

    E) indicating when the sharpness of the histograms of said second subject deviates from predetermined limits derived from the histograms of said first subject.

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