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  • Ryosuke Amisaki
    Affiliations
    Department of Multidisciplinary Internal Medicine, Division of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University, Yonago, Japan
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  • Masahiko Kato
    Correspondence
    Corresponding author at: Division of School of Health Science, Department of Pathobiological Science and Technology, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, Japan.
    Affiliations
    Division of School of Health Science, Department of Pathobiological Science and Technology, Faculty of Medicine, Tottori University, Yonago, Japan
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  • Kazuhiro Yamamoto
    Affiliations
    Department of Multidisciplinary Internal Medicine, Division of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University, Yonago, Japan
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Published:October 28, 2022DOI:https://doi.org/10.1016/j.jjcc.2022.10.005
      Thank you for reading our article [
      • Amisaki R.
      • Kato M.
      • Fujiyama M.
      • Matsuda E.
      • Hattori Y.
      • Hirai M.
      • et al.
      Difficulty initiating sleep in patients with heart failure: impact of left atrial pressure.
      ] and your constructive considerations. The quantification of lung fluid levels by remote dielectric sensing (ReDS™) in patients with heart failure (HF) is interesting. Although the number of participants in the study is relatively small, there was a correlation between lung fluid levels by ReDS and pulmonary capillary wedge pressure [
      • Imamura T.
      • Hori M.
      • Ueno Y.
      • Narang N.
      • Onoda H.
      • Tanaka S.
      • et al.
      Association between lung fluid levels estimated by remote dielectric sensing values and invasive hemodynamic measurements.
      ]. In addition, the authors also examined chronotype of lung fluid levels in chronic HF patients [
      • Ueno Y.
      • Imamura T.
      • Narang N.
      • Kinugawa K.
      Chronotype of lung fluid levels in patients with chronic heart failure.
      ]. There is no reliable noninvasive method for estimating left atrial pressure so far. ReDS is not available in our hospital, and we used E/e’ which is currently widely used to evaluate left atrial pressure in our study. There is an opening to discuss the relationship between lung fluid levels and sleep condition using ReDS.

      Keywords

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      References

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        • Kato M.
        • Fujiyama M.
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        • Hirai M.
        • et al.
        Difficulty initiating sleep in patients with heart failure: impact of left atrial pressure.
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        Association between lung fluid levels estimated by remote dielectric sensing values and invasive hemodynamic measurements.
        J Clin Med. 2022; 11: 1208
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        Chronotype of lung fluid levels in patients with chronic heart failure.
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