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Scoring model for prediction of sudden cardiac death using high resolution ambulatory electrocardiogram

Research Project

Project/Area Number 20K07816
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52010:General internal medicine-related
Research InstitutionNational Defense Medical College

Principal Investigator

Kenichi Hashimoto  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 総合臨床部, 講師 (10726079)

Co-Investigator(Kenkyū-buntansha) 眞崎 暢之  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 内科学, 講師 (00364795)
高山 忠輝  日本大学, 医学部, 教授 (10366601)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords心不全 / 心臓突然死 / 致死性不整脈 / ホルター心電図 / 不整脈 / 臨床電気生理 / 自律神経異常 / 健常人 / 心室遅延電位 / T波オルタナンス / 心拍タービュランス / 24時間心電計 / 自律神経 / 心疾患
Outline of Research at the Start

本邦の心臓突然死(心突然死)の原因の多くは心室頻拍・心室細動等などの致死性不整脈であり年間約12万人にのぼる。心突然死の予防には、植込み型除細動器手術が唯一有効であるものの手術適応を決める高精度の心電図指標はない。近年計測可能となった24時間心電指標(心室遅延電位、T波オルタナンス、心拍タービュランス)及び心拍変動解析、心室期外収縮を組み合わせ高精度で不整脈死を予測できる可能性がある。本研究では、心突然死予測24時間心電図指標を組み合わせた独自の予測スコアリングモデルを構築し、高精度に心不全患者の心突然死を予知できるか検討する。本研究により心不全患者のリスク層別化を行い、心臓突然死防止への貢献を目指す。

Outline of Final Research Achievements

The purpose of this study was to determine the normal values of 24-hour ECG indices for cardiac prognosis and the optimal measurement method, and to create an original cardiac prognosis score chart combining these indices for the prediction of sudden cardiac death in heart failure patients, Among the 24-hour ECG indices, the signal averaged ECG had diurnal variation, and the accuracy was higher when LAS40 was measured at the longest time, and the test accuracy was higher when the number of additions was greater. It should be needed that the number of cases enrolled in the study will be increased to complete the sudden cardiac death prediction score table, which will be useful for research on the treatment of heart failure and recurrence of heart failure.

Academic Significance and Societal Importance of the Research Achievements

今後、本研究結果を用いて精度高く侵襲が少ない心電図検査や採血によって心臓の状態を詳しく把握することができます。また、爆発的に増加が予測される心不全患者さんの予後の予測に役に立てることが出来ます。心不全による再入院の予測も可能となるうります。心臓の予後予測スコア表で現在の心臓の評価を行い、心不全の治療や再発防止にも役立てます。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Age-related reference intervals for ambulatory electrocardiographic parameters in healthy individuals2023

    • Author(s)
      Hashimoto Kenichi、Harada Naomi、Kimata Motohiro、Kawamura Yusuke、Fujita Naoya、Sekizawa Akinori、Ono Yosuke、Obuchi Yasuhiro、Takayama Tadateru、Kasamaki Yuji、Tanaka Yuji
    • Journal Title

      Frontiers in Cardiovascular Medicine

      Volume: 10 Pages: 1-13

    • DOI

      10.3389/fcvm.2023.1099157

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Frequent occurrence of post-breakfast syncope due to carotid sinus syndrome after surgery for hypopharyngeal cancer: A case report2021

    • Author(s)
      Yuya Ando, Kenichi Hashimoto, Naoya Fujita, Azusa Sano, Yosuke Ono, Yasuhiro Obuchi, Rempei Yanagawa, Daisuke Tatsushima, Shun Watanabe, Masayuki Tomifuji, and Yuji Tanaka.
    • Journal Title

      Medicine

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reference values for a novel ambulatory-based frequency domain T-wave alternans in subjects without structural heart disease2020

    • Author(s)
      Hashimoto Kenichi、Harada Naomi、Kasamaki Yuji
    • Journal Title

      Journal of Cardiology

      Volume: 76 Issue: 5 Pages: 506-513

    • DOI

      10.1016/j.jjcc.2020.06.002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Combined evaluation of ambulatory‐based late potentials and nonsustained ventricular tachycardia to predict arrhythmic events in patients with previous myocardial infarction: A Japanese noninvasive electrocardiographic risk stratification of sudden cardiac death (JANIES) substudy2020

    • Author(s)
      Hashimoto Kenichi、Amino Mari、Yoshioka Koichiro、Kasamaki Yuji、Kinoshita Toshio、Ikeda Takanori
    • Journal Title

      Annals of Noninvasive Electrocardiology

      Volume: 26 Issue: 1 Pages: 1-11

    • DOI

      10.1111/anec.12803

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] The reference values of premature complexes detected by 24-hour Holter ECG in healthy volunteers of wide age range2022

    • Author(s)
      橋本賢一、原田直美、笠巻祐二
    • Organizer
      日本不整脈心電学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 幅広い年齢層の健常者における24時間ホルター心電図をもちいた不整脈出現率に関する世代別健常値についての検討2022

    • Author(s)
      橋本賢一、笠巻祐二
    • Organizer
      日本抗加齢学会
    • Related Report
      2022 Research-status Report
  • [Presentation] ホルター心電計を用いた心室遅延電位測定において加算回数を増やすことはノイズレベルを低下させ精度を向上させ得るか?2021

    • Author(s)
      橋本賢一
    • Organizer
      日本循環器学会総会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 幅広い年齢層の健常者における不整脈出現に関する世代別健常値についての検討2021

    • Author(s)
      原田直美、橋本賢一
    • Organizer
      心電学関連春季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ホルター心電計を用いた心室遅延電位は加算回数を増やすことで心室遅延電位指標の変化を伴わずにノイズレベルを下げられるか?2021

    • Author(s)
      橋本賢一
    • Organizer
      心電学関連春季大会
    • Related Report
      2021 Research-status Report 2020 Research-status Report
  • [Presentation] The combined evaluation of ambulatory-based late potentials and nonsustained ventricular tachycardia to predict arrhythmic events in patients with post myocardial infarction: A Japanese Noninvasive electrocardiographic Risk Stratification of Sudden Cardiac Death Substudy2021

    • Author(s)
      Kenichi Hashimoto
    • Organizer
      International Congress on Electrocardiology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 心筋梗塞後症例における高分解能ホルター心電計を用いた心室加算平均心電図の日内変動についての検討―自律神経機能との関連―2020

    • Author(s)
      橋本賢一
    • Organizer
      心電学関連研究会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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