Difference between a fantasy at the ‘End-of-life’ and an emotional reaction of REM-sleep using the 1/f-like spectral analysis of the heart rate variability and Balance index

DOI

Bibliographic Information

Other Title
  • 生命終末期燃え尽き現象とレム期の夢情動反応Balance index (心拍変動1/f スペクトル解析による)を指標に

Description

The last moment of the end-of-life in ICU is almost unconscious, thus any emotional discharge appearing or not in this time has not been proved. Then, using the non-linear heart rate variability that has made the brain-heart transmission, it focused on the occurrence or not of an emotional reaction in this moment contracting with a normal REM-sleep dream. By a small memory heart rate monitor and using 1/f-like spectrum analysis method by 1 ms based on ‘the theory of the comfort feeling by the 1/f sound fluctuation in the natural world widely’, and the new parameters of 4-balance indices, i.e. ‘As-Bal-I’, ‘SV-Bal-I’, ‘Hs-Bal-I’ and ‘Ls-Bal-I’ were calculated every 5 minutes interval using a MemCalc System. As the results, the patients immediately before cardiac arrest showed the rise-up of the ‘Hs-Bal-I’ as the cardiac activity struggling until then and also showed a sudden rise-up of ‘As-Bal-I’ as the emotional parameter and exceed over the ‘SV-Bal-I’. There was a little difference between the emotional dream reaction during the normal REM sleep and the end of life. That is, when the numerical level of ‘As-Bal-I’ was 0.5-1.5, it will be pleasant feeling, but this level was in upper than 2.0, it will be with painful. In conclusion, even if the patients were in unconscious, they might be visualized various emotional worlds like the dream phantasm immediately before death in the end-of-life. Like this, the Balance indices are useful parameters of fall down transmission system of information from brain center to cardiac.

Journal

  • CIRCULATION CONTROL

    CIRCULATION CONTROL 39 (3), 180-189, 2018

    Japan Society of Circulation Control in Medicine

Keywords

Details 詳細情報について

  • CRID
    1390001288119631104
  • NII Article ID
    130007586307
  • DOI
    10.11312/ccm.39.180
  • ISSN
    03891844
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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