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The prognostic assessment of the leg positive pressure echocardiography for patients with chronic heart failure

Research Project

Project/Area Number 16K01410
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Medical systems
Research InstitutionKobe University

Principal Investigator

Kensuke Matsumoto  神戸大学, 医学部附属病院, 特命講師 (00749195)

Co-Investigator(Kenkyū-buntansha) 田中 秀和  神戸大学, 医学研究科, 講師 (20590342)
Research Collaborator Matsuzoe Hiroki  
Project Period (FY) 2016-10-21 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords心不全 / 前負荷 / 心予備能 / 前負荷予備能 / 予後推定 / 収縮予備能 / 拡張予備能 / 心室間相互作用 / 予後層別化 / Frank-Starling機構 / 負荷心エコー図検査 / 急性前負荷負荷 / 慢性心不全 / 予後規定因子 / 心血管イベント / リスク評価 / フランクスターリング機構 / 心血管事故 / 予後予測因子 / 負荷エコー検査
Outline of Final Research Achievements

For this study, 120 consecutive patients with heart failure with reduced ejection fraction were prospectively recruited. The stroke work index was estimated as product of stroke volume index and mean blood pressure, and the E/e' ratio was calculated to estimate ventricular filling pressure. During the median follow-up period of 20 months, 30 patients developed adverse cardiovascular events. During preload stress, stroke work index increased significantly along with minimal changes in ventricular filling pressure in patients without cardiovascular events. However, patients with cardiovascular events showed impairment of Frank-Starling mechanism and a serious increase in E/e′ ratio. Both the patients without contractile reserve and those without diastolic reserve exhibited worse event-free survival than the others. In a Cox proportional-hazards analysis, the changes in stroke work index and in E/e′ were predictors of cardiovascular events.

Academic Significance and Societal Importance of the Research Achievements

これまで負荷エコー検査では強心剤が用いられることが多かったが、安全性や検査の煩雑さの問題があり、十分に実用化されてこなかった。一方、下肢陽圧負荷心エコーは体うっ血の再現が可能であり、心不全の病態を考慮した場合、極めて合理的かつ病態生理に忠実に準拠した心負荷検査と考えることができる。下肢陽圧負荷心エコー法により前負荷増大に対する心血管系の代償反応機構やその破綻のメカニズムが明らかとなったことにより、心不全患者に対するより適切な治療のエンドポイントの設定が可能となるであろう。また心不全患者におけるリスク層別化と、見積もられたリスクに応じた医療費や医療資源の効率的な分配に貢献できると確信している。

Report

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

    (5 results)

All 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Noninvasive Assessment of Preload Reserve Enhances Risk Stratification of Patients With Heart Failure With Reduced Ejection Fraction.2018

    • Author(s)
      Matsumoto K, Onishi A, Yamada H, Kusunose K, Suto M, Hatani Y, Matsuzoe H, Tatsumi K, Tanaka H, Hirata KI.
    • Journal Title

      Circ Cardiovasc Imaging

      Volume: May;11(5) Issue: 5 Pages: 1-12

    • DOI

      10.1161/circimaging.117.007160

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Noninvasive Assessment of Preload Reserve Enhances Risk Stratification of Patients With Heart Failure With Reduced Ejection Fraction2018

    • Author(s)
      Kensuke Matsumoto
    • Journal Title

      Circulation: Cardiovascular Imaging

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] The assessment of contractile reserve and diastolic reserve during non-invasive preload stress echocardiography contributes to the risk stratification for patients with heart failure2018

    • Author(s)
      K. Matsumoto, H. Tanaka, H. Yamada, J. Mukai, M. Suto, H. Takada, F. Soga, Y. Hatani, H. Matsuzoe, K. Hatazawa, H. Shimoura, J. Ooka, H. Sano, K-I. Hirata.
    • Organizer
      ESC 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The assessment of contractile reserve and diastolic reserve during non-invasive preload stress echocardiography contributes to the risk stratification for patients with heart failure2017

    • Author(s)
      Kensuke Matsumoto
    • Organizer
      ESC congress 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 急性前負荷増大負荷エコーを用いた収縮不全心における予後層別化の試み Prognostic impact of the preload reserve during preload stress echocardiography using leg-positive pressure manoeuver in patients with heart failure2017

    • Author(s)
      松本 賢亮
    • Organizer
      日本超音波医学会第90回学術集会
    • Place of Presentation
      栃木県宇都宮市
    • Related Report
      2016 Research-status Report

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Published: 2016-10-24   Modified: 2020-03-30  

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