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Early notification of heart failure by using intrathoracic impedance

Research Project

Project/Area Number 16K09437
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cardiovascular medicine
Research InstitutionOkayama University

Principal Investigator

NISHII Nobuhiro  岡山大学, 医歯薬学総合研究科, 講師 (50537214)

Co-Investigator(Kenkyū-buntansha) 中村 一文  岡山大学, 医歯薬学総合研究科, 准教授 (10335630)
森田 宏  岡山大学, 医歯薬学総合研究科, 教授 (50322227)
三好 亨  岡山大学, 大学病院, 講師 (70444651)
伊藤 浩  岡山大学, 医歯薬学総合研究科, 教授 (90446047)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords心臓植込み型デバイス / 胸郭内インピーダンス / 遠隔モニタリング / 心不全 / 植込み型除細動器 / 心臓再同期療法 / 再入院 / 体液貯留 / 胸郭インピーダンス / 植込み型デバイス / アラート
Outline of Final Research Achievements

Patients are encouraged to visit the hospital based on the measured intrathoracic impedance value mounted on the implantable defibrillator, and randomized to 3 groups: 1 diuretic, 2 nitrates, 3 heart failure education, for patients who are prone to heart failure Allocation was made. And one week later, the patients went to the outpatient clinic and undertook same examination. The number of patients registered was 156 from 10 institutions. Nineteen patients were randomly assigned to the diuretic group, the nitrate group, and the heart failure education group, and one week later, they visited the outpatient clinic and performed various tests again. There was no statistically significant difference in patient background among the 3 groups. Improvement of BNP and improvement of intrathoracic impedance were observed in all 3 groups after one week of treatment.

Academic Significance and Societal Importance of the Research Achievements

心不全患者は、心不全を繰り返し再入院する確率が高く、また、再入院が多い患者の予後は悪いことが知られている。多くのケースは、徐々に体液貯留が増悪し急性心不全を発症する。遠隔モニタリングと胸郭インピーダンスアラートを組み合わせることにより、非常に早期に心不全の前段階を見つけ出すことが可能となった。今回の検討で、①利尿剤、②硝酸薬、③心不全教育の3群すべてにおいて、BNPの改善、胸郭内インピーダンスの改善が認められた。どの介入方法でも心不全の改善が得られるため、積極的に介入することで、心不全入院を抑制できる可能性がある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (15 results)

All 2018 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Book (4 results)

  • [Journal Article] Analysis of arrhythmic events is useful to detect lead failure earlier in patients followed by remote monitoring.2018

    • Author(s)
      Nishii N, Miyoshi A, Kubo M, Miyamoto M, Morimoto Y, Kawada S, Nakagawa K, Watanabe A, Nakamura K, Morita H, Ito H.
    • Journal Title

      J Cardiovasc Electrophysiol.

      Volume: 29 Issue: 3 Pages: 463-470

    • DOI

      10.1111/jce.13399

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two cases of inappropriate implantable cardioverter-defibrillator therapies due to T wave oversensing induced by body twisting.2017

    • Author(s)
      Nishii N, Miyoshi A, Kubo M, Sugiyama H, Tachibana M, Nakagawa K, Watanabe A, Morita H, Ito H.
    • Journal Title

      J Arrhythm.

      Volume: 33 Issue: 2 Pages: 152-155

    • DOI

      10.1016/j.joa.2016.06.003

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Initial experience with the subcutaneous implantable cardioverter-defibrillator in a single Japanese center.2017

    • Author(s)
      Nishii N, Tachibana M, Morimoto Y, Kawada S, Miyoshi A, Sugiyama H, Nakagawa K, Watanabe A, Nakamura K, Morita H, Ito H.
    • Journal Title

      J Arrhythm.

      Volume: 33 Issue: 4 Pages: 338-341

    • DOI

      10.1016/j.joa.2017.02.004

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] デバイスを用いた遠隔モニタリング2016

    • Author(s)
      西井伸洋
    • Journal Title

      Fluid Management Renaissance

      Volume: 6(2) Pages: 59-65

    • Related Report
      2016 Research-status Report
  • [Presentation] 遠隔モニタリングを活用した心不全管理2018

    • Author(s)
      西井伸洋
    • Organizer
      第10回植込みデバイス関連冬季大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multipoint pacing fused with self-conduction is most effective in acute hemodynamic change2018

    • Author(s)
      宮本真和、西井伸洋、森本芳正、三好章仁、川田哲史、寺西 仁、中川晃志、渡邊敦之、中村一文、森田 宏、伊藤 浩
    • Organizer
      第10回植込みデバイス関連冬季大会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Advantages and Disadvantages of S-ICD for Primary Prevention2017

    • Author(s)
      Nobuhiro Nishii
    • Organizer
      Asian Pasific Heart Rhythm Society 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Lead Extraction in Patients with Large Vegetation2017

    • Author(s)
      Nobuhiro Nishii
    • Organizer
      Asian Pasific Heart Rhythm Society 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 遠隔モニタリングシステムを活用した医療連携システムの構築2016

    • Author(s)
      竹中祐樹、西井伸洋、三好 章仁、杉山弘恭、中川晃志、渡邊敦之、森田 宏、伊藤 浩
    • Organizer
      第64回日本心臓病学会学術集会
    • Place of Presentation
      東京国際フォーラム(東京都千代田区)
    • Year and Date
      2016-09-23
    • Related Report
      2016 Research-status Report
  • [Presentation] Untouched:心臓に触れずに患者を守る2016

    • Author(s)
      西井伸洋
    • Organizer
      第63回日本不整脈心電学会学術大会
    • Place of Presentation
      札幌コンベンションセンター(北海道札幌市)
    • Year and Date
      2016-07-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 遠隔モニタリングシステムによる頻回フォローアップは有用か?2016

    • Author(s)
      竹中 祐樹 、西井 伸洋、三好 章仁 、杉山 弘恭 、中川 晃志 、渡邊 敦之 、森田 宏 、伊藤 浩
    • Organizer
      第63回日本不整脈心電学会学術大会
    • Place of Presentation
      札幌コンベンションセンター(北海道札幌市)
    • Year and Date
      2016-07-14
    • Related Report
      2016 Research-status Report
  • [Book] BIO Clinica2018

    • Author(s)
      西井伸洋
    • Total Pages
      100
    • Publisher
      北隆館
    • Related Report
      2018 Annual Research Report
  • [Book] Heart View2018

    • Author(s)
      西井伸洋
    • Total Pages
      92
    • Publisher
      メジカルビュー社
    • Related Report
      2018 Annual Research Report
  • [Book] Precision Medicine2018

    • Author(s)
      西井伸洋
    • Total Pages
      108
    • Publisher
      北竜館
    • Related Report
      2018 Annual Research Report
  • [Book] 循環器内科2018

    • Author(s)
      西井伸洋
    • Total Pages
      210
    • Publisher
      科学評論社
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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