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Novel method for the evaluation of left ventricular diastolic function using intracardiac flow analysis in dog with cardiac failure

Research Project

Project/Area Number 16K08047
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Veterinary medical science
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Tanaka Ryo  東京農工大学, (連合)農学研究科(研究院), 准教授 (70334480)

Co-Investigator(Kenkyū-buntansha) 田中 登  順天堂大学, 医学部, 非常勤助教 (40748993)
高橋 健  順天堂大学, 医学部, 先任准教授 (70343481)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords心内血流 / 心機能 / 拡張能 / 心エコー / 圧容量曲線 / 腫瘍循環器学 / 抗癌剤 / 心筋症 / VFM / IVPD / 心室内圧較差 / 獣医学 / 循環器・高血圧 / 生理学
Outline of Final Research Achievements

Diastolic dysfunction is a common heart condition in both domestic animals and humans, particularly among the elderly, where the diastole stage does not function as efficiently as it should. The muscles in the ventricle walls become thickened and stiff, losing their elasticity, and do not relax and expand properly. As a result, the capacity of these chambers to fill up with blood is reduced. This in turn causes blood to accumulate in other areas of the body. We showed the close relationship of vortex and intraventricular pressure difference and showed that both of them can become new markers of the left ventricular relaxation property,

Academic Significance and Societal Importance of the Research Achievements

拡張能の評価を非侵襲的に行うことは簡単ではなく、これまでいくつかの評価方法が考案されてきた。我々が注目したVFMのE-vorや、IVPDのMid IVPDは前負荷の影響を克服できると期待され、さらに拡張能をシンプルに数値化して評価出来るということが期待される。心不全治療では早期発見が非常に重要となる。心筋に不可逆的変化が生じる前に拡張能低下の検出が可能になれば、早期の治療介入が行えるようになる。また、本研究において新規パラメータの拡張能検出の有用性が確かめられれば、DCM等の循環器疾患の病態評価にも普遍的に応用することが期待される。

Report

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

    (9 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (6 results) (of which Invited: 1 results)

  • [Int'l Joint Research] コペンハーゲン大学(デンマーク)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Left ventricular vortex and intraventricular pressure difference in dogs under various loading conditions2019

    • Author(s)
      Matsuura Katsuhiro、Shiraishi Kenjirou、Sato Kotomi、Shimada Kazumi、Goya Seijirow、Uemura Akiko、Ifuku Mayumi、Iso Takeshi、Takahashi Ken、Tanaka Ryou
    • Journal Title

      American Journal of Physiology-Heart and Circulatory Physiology

      Volume: 316 Issue: 4 Pages: H882-H888

    • DOI

      10.1152/ajpheart.00686.2018

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The relationship between systolic vector flow mapping parameters and left ventricular cardiac function in healthy dogs2017

    • Author(s)
      Goya Seijirow、Wada Tomoki、Shimada Kazumi、Hirao Daiki、Tanaka Ryou
    • Journal Title

      Heart and Vessels

      Volume: 33 Issue: 5 Pages: 549-560

    • DOI

      10.1007/s00380-017-1093-1

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 前負荷と後負荷を変化させた際の弛緩能の変化の評価に関する研究2018

    • Author(s)
      松浦功泰、佐藤琴美、白石健士郎、島田香寿美、合屋征二郎、磯 武史、 矢崎香奈、高橋 健、田中 綾
    • Organizer
      血流会
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
  • [Presentation] 左心室の渦は心室内圧較差の影響を受ける2017

    • Author(s)
      松浦功泰
    • Organizer
      第7回血流会
    • Place of Presentation
      東京農工大学農学部
    • Year and Date
      2017-01-17
    • Related Report
      2016 Research-status Report
  • [Presentation] ランチョンセミナー 拡張能の最新トピックス2017

    • Author(s)
      田中綾
    • Organizer
      動物臨床学会年次大会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 左心室の渦流と心室内圧較差2016

    • Author(s)
      松浦 功泰、合屋 征二郎、横田俊輝、佐藤琴美、田中 綾、磯武史、矢﨑香奈、高橋健
    • Organizer
      第105回獣医循環器学会
    • Place of Presentation
      福岡 国際会議場
    • Year and Date
      2016-12-04
    • Related Report
      2016 Research-status Report
  • [Presentation] 拡張型心筋症モデル犬におけるドブタミン投与時のVector Flow Mappingを用いた左心室内血流動態解析2016

    • Author(s)
      松浦 功泰、合屋 征二郎、横田俊輝、和田智樹、田中 綾
    • Organizer
      第104回獣医循環器学会
    • Place of Presentation
      大宮 ソニックシティ
    • Year and Date
      2016-06-19
    • Related Report
      2016 Research-status Report
  • [Presentation] Vector Flow Mappingで計測した収縮期最大循環及び渦度の左室圧容量曲線との関連性2016

    • Author(s)
      横田俊輝、松浦 功泰、合屋 征二郎、和田智樹、田中 綾
    • Organizer
      第104回獣医循環器学会
    • Place of Presentation
      大宮 ソニックシティ
    • Year and Date
      2016-06-19
    • Related Report
      2016 Research-status Report

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

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