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Long term follow-up of cardiac function and prognosis after optimal therapy in patients with systemic amyloidosis

Research Project

Project/Area Number 17K09492
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Koyama Jun  信州大学, 医学部附属病院, 医員 (10303463)

Co-Investigator(Kenkyū-buntansha) 桑原 宏一郎  信州大学, 学術研究院医学系, 教授 (30402887)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsアミロイドーシス / 心機能 / 心臓超音波検査 / 免疫グロブリン軽鎖 / トランスサイレチン / 心病変 / h-ANP / BNP / 心エコー / amyloid light-chain / 予後 / 治療効果 / 心臓超音波診断
Outline of Final Research Achievements

Serial echocardiographic observation showed following findings. 1) in patients with AL amyloidosis, 30% patients showed regression of cardiac involvement, 27% showed no change, and 37% showed progression of cardiac amyloidosis. As to prognosticator of AL amyloidosis, diastolic wall strain, e', plasma BNP, and heart rate during echocardiography were proven to be
independent predictors. Elevation of h-ANP add to BNP was important role to predict cardiac function. In patients with transthyretin cardiac amyloidosis, 10% patients showed regression of cardiac involvement, 49% showed arrest of cardiac amyloid progression, and 41% showed progression of cardiac amyloidosis after optimal therapy. In patients with AL amyloidosis, regression and arrest of development of cardiac amyloidosis were associated with good prognosis.

Academic Significance and Societal Importance of the Research Achievements

心アミロイドーシスは従来、治療によって病変の進行を抑えることができると考えられていたが、本研究においては、心病変の退縮を示す症例が存在することが明らかとなった。全身性アミロイドーシスにおいて、心病変はもっとも重要な予後規定因子であることが知られている。治療により患者の生命予後を改善することができることが明らかとなった。積極的な治療が望まれることが示唆される。特にALアミロイドーシスでは、治療後の心病変の進行は、予後不良を示唆する重要な所見であり、心病変の進行が認められる場合は、他の治療法に切り替えて経過を見た方が良いことが示唆された。今後の心アミロイドーシスの治療に影響を与える成果である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] JCS 2020 Guideline on Diagnosis and Treatment of Cardiac Amyloidosis2020

    • Author(s)
      Koyama J et al.
    • Journal Title

      Circulation Journal in press

      Volume: in press

    • NAID

      130007890677

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of echocardiography in assessing cardiac amyloidoses: a systematic review2019

    • Author(s)
      Jun Koyama et al.
    • Journal Title

      Journal of Echocardiography

      Volume: - Issue: 2 Pages: 64-75

    • DOI

      10.1007/s12574-019-00420-5

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Duration of myocardial early systolic lengthening for diagnosis of coronary artery disease2018

    • Author(s)
      7.Minamisawa M, Koyama J, Kozuka A, Miura T, Saigusa T, Ebisawa S, Motoki H, Okada A, Ikeda U, Kuwahara K
    • Journal Title

      Open Heart.

      Volume: 5 Issue: 2 Pages: e000896-e000896

    • DOI

      10.1136/openhrt-2018-000896

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Arrest of Progression of Cardiac Amyloidosis after Chemotherapy Predicts Favorable Outcome in Patients with Light-chain Amyloidosis.2019

    • Author(s)
      Koyama J, Minamisawa M, Kuwahara K.
    • Organizer
      ESC Asia
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long-term Serial Echocardiographic Observation in Patients with Familial Amyloid Polyneuropathy after Optimal Therapy2018

    • Author(s)
      Jun Koyama et al.
    • Organizer
      American Heart Association Scientific Session 2018 in Chicago
    • Related Report
      2018 Research-status Report
  • [Presentation] Long-term serial echocardiographic observation in patients with systemic light-chain amyloidosis.2017

    • Author(s)
      1. Jun Koyama, KoIchiro Kuwahara.
    • Organizer
      AHA scientific sessions 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] Human atrial natriuretic peptide levels in combination with plasma brain natriuretic peptide levels predict cardiac function in patients with light-chain amyloidosis.2017

    • Author(s)
      2. Jun Koyama, Koichiro Kuwahara.
    • Organizer
      AHA scientific sessions 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] Long-term prognostic significance of diastolic wall strain,, and heart rate in patients with light-chain amyloidosis.2017

    • Author(s)
      2. Jun Koyama, KoIchiro Kuwahara.
    • Organizer
      AHA scientific sessions 2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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