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Right ventricular function and dyssynchrony assessment by three-dimensional echocardiography

Research Project

Project/Area Number 16K09416
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cardiovascular medicine
Research InstitutionUniversity of Tsukuba

Principal Investigator

Tomoko Ishizu  筑波大学, 医学医療系, 講師 (10507859)

Co-Investigator(Kenkyū-buntansha) 山本 昌良  筑波大学, 附属病院, 病院講師 (20730386)
町野 智子  筑波大学, 医学医療系, 助教 (20755673)
瀬尾 由広  筑波大学, 医学医療系, 准教授 (40375499)
Research Collaborator YAMAMOTO masayoshi  
MACHINO tomoko (OHTSUKA tomoko)  
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: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords心不全 / 心エコー / 右室機能 / 循環器画像診断 / 三次元エコー / 心エコー図 / 心機能 / 3次元心エコー
Outline of Final Research Achievements

Right ventricular (RV) mechanical dyssynchrony associated with right bundle branch block (RBBB) has not been well characterized, and little is known regarding the effect of RBBB on RV size and function. To elucidate the influence of RBBB on RV size and function, we investigated the association between complete RBBB (CRBBB) and RV volume, function, and dyssynchrony by newly developed three-dimensional echocardiography, which was successfully validated using the cardiac MRI imaging.Among the 123 patients Three-dimensional speckle tracking echocardiographic analysis revealed that CRBBB is accompanied with contraction delay in the RV inlet free wall and outlet, and is associated with RV enlargement, systolic dysfunction, and a decline in left atrial preload. The results may show the possible utility of the resynchronization therapy targeting to the RV with RBBB type conduction abnormality in the future.

Academic Significance and Societal Importance of the Research Achievements

心不全は近年の高齢化に伴い急速に増加しており、我が国の重大な医療問題である。心不全の予後は不良であるが、中でも右室機能の低下が予後不良と関連することが近年明らかとなった。右室機能障害の原因の一つとして、右室の電気的興奮伝播遅延が関与することを本研究では示すことができた。右室電気的興奮伝播遅延への治療的介入が右室機能低下への治療に結びつく可能性があるが、この治療法によって恩恵を受ける患者を診断、評価する方法として、我々が開発した三次元心エコー法の臨床応用が進むことが、患者の予後改善につなが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

    (11 results)

All 2019 2018 2017

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Soluble ST2 and brain natriuretic peptide predict different mode of death in patients with heart failure and preserved ejection fraction2019

    • Author(s)
      Sugano Akinori、Seo Yoshihiro、Ishizu Tomoko、Sai Seika、Yamamoto Masayoshi、Hamada-Harimura Yoshie、Machino-Ohtsuka Tomoko、Obara Kenichi、Nishi Isao、Aonuma Kazutaka、Nogami Akihiko
    • Journal Title

      Journal of Cardiology

      Volume: 73 Issue: 4 Pages: 326-332

    • DOI

      10.1016/j.jjcc.2018.10.012

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Incremental Prognostic Value of Right Ventricular Strain in Patients With Acute Decompensated Heart Failure2018

    • Author(s)
      Hamada-Harimura Yoshie、Seo Yoshihiro、Ishizu Tomoko、Nishi Isao、Machino-Ohtsuka Tomoko、Yamamoto Masayoshi、Sugano Akinori、Sato Kimi、Sai Seika、Obara Kenichi、Yoshida Ikuo、Aonuma Kazutaka、for the ICAS-HF Investigators
    • Journal Title

      Circulation: Cardiovascular Imaging

      Volume: 11 Issue: 10

    • DOI

      10.1161/circimaging.117.007249

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Value of 3-Dimensional Speckle Tracking Echocardiography in the Prediction of Microvascular Obstruction and Left Ventricular Remodeling in Patients With ST-Elevation Myocardial Infarction2017

    • Author(s)
      Sugano,Akinori;Seo,Yoshihiro;Ishizu,Tomoko;Watabe,Hiroaki;Yamamoto,Masayoshi;Machino-Ohtsuka,Tomoko;Takaiwa,Yui;Kakefuda,Yuki;Aihara,Hideaki;Fumikura,Yuko;Nishina,Hidetaka;Noguchi,Yuichi;Aonuma,Kazutaka
    • Journal Title

      Circulation Journal

      Volume: 81 Issue: 3 Pages: 353-360

    • DOI

      10.1253/circj.CJ-16-0944

    • NAID

      130005242990

    • ISSN
      1346-9843, 1347-4820
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rigid Left Ventricle With Attenuated Torsion as the Integrally Deteriorated Form of Dilated Cardiomyopathy2017

    • Author(s)
      Seo,Yoshihiro;Ishizu,Tomoko;Aonuma,Kazutaka
    • Journal Title

      Circulation Journal

      Volume: 81 Issue: 4 Pages: 440-441

    • DOI

      10.1253/circj.CJ-17-0161

    • NAID

      130005475853

    • ISSN
      1346-9843, 1347-4820
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Global and Regional Right Ventricular Function Assessed by Novel Three-Dimensional Speckle-Tracking Echocardiography2017

    • Author(s)
      Ishizu, Tomoko; Seo, Yoshihiro; Atsumi, Akiko; Tanaka, Yumiko Oishi; Yamamoto, Masayoshi; Machino-Ohtsuka, Tomoko; Horigome, Hitoshi; Aonuma, Kazutaka
    • Journal Title

      Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography

      Volume: 30 Issue: 12 Pages: 1203-1213

    • DOI

      10.1016/j.echo.2017.08.007

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] The Effect of Right Bundle Brunch Block on Ventricular Interaction in Pulmonary Hypertension2018

    • Author(s)
      Naomi Nakazawa, Tomoko Ishizu, Yoshihiro Seo, Tomoko Ohtsuka-Machino, Yoshihiro Yamamoto, Masaki Ieda, Yasushi Kawakami
    • Organizer
      Scientific Sessions of Japanese Circulation Society 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Significance of Right Bundle Branch Block in Right Ventricular Size and Function Assessed by Three-Dimensional Echocardiography2018

    • Author(s)
      Naomi Nakazawa, Tomoko Ishizu, Yoshihiro Seo, Tomoko Ohtsuka-Machino, Yoshihiro Yamamoto, Masaki Ieda, Yasushi Kawakami
    • Organizer
      Scientific Sessions of Japanese Circulation Society 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Right Heart Function Assessment to Guide the Therapeutic Timing of Heart Failure with Preserved Ejection Fraction2017

    • Author(s)
      石津 智子
    • Organizer
      日本循環器学会
    • Place of Presentation
      石川県立音楽堂、石川県、金沢市
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] The Significance of Three Dimensional Transesophageal Echocardiography for Right Ventricular Volume Assessment2017

    • Author(s)
      石津 智子
    • Organizer
      日本成人先天性心疾患学会
    • Place of Presentation
      ホテルグリーンパーク津、三重県津市
    • Year and Date
      2017-01-14
    • Related Report
      2016 Research-status Report
  • [Presentation] Incremental Value of Right Ventricular Longitudinal Strain to Predict Clinical Outcomes of Acute Decompensated Heart Failure2017

    • Author(s)
      Yoshie Hamada, Tomoko Ishizu, Yoshihiro Seo, Kazutaka Aonuma
    • Organizer
      日本循環器学会
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Right Heart Function Assessment to Guide the Therapeutic Timing of Heart Failure with Preserved Ejection Fraction2017

    • Author(s)
      Tomoko Ishizu, Yoshihiro Seo, Kazutaka Aonuma
    • Organizer
      日本循環器学会
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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

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