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Transthoracic echocardiographic diagnosis of patent foramen ovale associated with cryptogenic strole

Research Project

Project/Area Number 21K08080
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionOkayama University

Principal Investigator

Takaya Yoichi  岡山大学, 大学病院, 助教 (10794290)

Co-Investigator(Kenkyū-buntansha) 中川 晃志  岡山大学, 大学病院, 講師 (70726132)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords卵円孔開存 / 脳梗塞 / 心エコー / 卵円孔開存症 / コントラスト / カテーテル治療 / 経胸壁心エコー図 / 奇異性脳塞栓症 / PFOカテーテル閉鎖術 / PFO診断
Outline of Research at the Start

我々は、経食道心エコー図で奇異性脳塞栓症と関連するPFO形態に関して報告してきたが、経食道心エコー図は、侵襲的で、簡便ではなく、スクリーニングには不適である。一方、経胸壁心エコー図は、多くの施設でも施行可能で、PFO診断に有用である。しかし、経胸壁心エコー図におけるバブルコントラストでの右左短絡量に基づくPFOリスク層別化はこれまで検討されていない。本研究は、PFOカテーテル閉鎖術の適応を厳密に評価するうえで重要性が高く、簡便な経胸壁心エコー図を用いており汎用性が高く、臨床的に非常に有用であると考えられる。

Outline of Final Research Achievements

This study aimed to evaluate the efficacy of saline contrast transthoracic echocardiography (TTE) for identifying PFO associated with cryptogenic stroke(CS).
Contrast TTE showed that right-to-left shunt of Grade 4 was more frequently observed in patients with CS. Right-to-left shunt of Grade 4 was associated with multiple anatomical characteristics of high-risk PFO. These findings suggest that contrast TTE can be effective to stratify patients for transcatheter PFO closure.

Academic Significance and Societal Importance of the Research Achievements

PFOは多くの健常人にも認めるため、奇異性脳塞栓症を発症し得るPFOであるか否か、判断することが重要である。本研究は、汎用性が高い経胸壁心エコー図で、奇異性脳塞栓症に関連するPFOを特定する方法を明らかにした。本研究の結果は、PFOカテーテル閉鎖術を考慮する患者選択において、非常に重要なエビデンスになり得ると考える。

Report

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

    (13 results)

All 2024 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results)

  • [Journal Article] Relationship between patent foramen ovale anatomical features and residual shunt after patent foramen ovale closure2024

    • Author(s)
      Nakayama Rie、Takaya Yoichi、Akagi Teiji、Takemoto Rika、Haruna Madoka、Nakashima Mitsutaka、Miki Takashi、Nakagawa Koji、Toh Norihisa、Nakamura Kazufumi
    • Journal Title

      Cardiovascular Intervention and Therapeutics

      Volume: 39 Issue: 2 Pages: 200-206

    • DOI

      10.1007/s12928-023-00979-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Patent foramen ovale with sail-like Eustachian valve causing recurrent strokes2023

    • Author(s)
      Nakayama Rie、Takaya Yoichi、Akagi Teiji、Yokohama Fumi、Miki Takashi、Ito Hiroshi
    • Journal Title

      Cardiovascular Intervention and Therapeutics

      Volume: 38 Issue: 2 Pages: 264-265

    • DOI

      10.1007/s12928-022-00887-7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Importance of saline contrast transthoracic echocardiography for evauating large right-to-left shunt in patent foramen ovale associated with cryptogenic stroke2022

    • Author(s)
      Takaya Y, Nakayama R, Akagi T, Yokohama F, Miki T, Nakagawa K, Toh N, Ito H
    • Journal Title

      Int J Cardiovasc Imaging

      Volume: 38 Issue: 3 Pages: 515-520

    • DOI

      10.1007/s10554-021-02418-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Feasibility of transcatheter closure for absent aortic rim in patients with atrial septal defect2021

    • Author(s)
      Takaya Y, Akagi T, Nakagawa K, Nakayama R, Miki T, Toh N, Ito H
    • Journal Title

      Catheter Cardiovasc Interv

      Volume: 97 Issue: 5 Pages: 859-864

    • DOI

      10.1002/ccd.29457

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fusion imaging of three-dimensional echocardiographic speckle-tracking with cardiac computed tomography for identification of myocardial ischemia2021

    • Author(s)
      Takaya Y, Nakayama R, Watanabe N, Toh N, Miyoshi T, Ito H
    • Journal Title

      Health Sci Rep

      Volume: 4 Issue: 2

    • DOI

      10.1002/hsr2.285

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Morphological assessments of deficient posterior-inferior rim for transcatheter closure of atrial septal defect2020

    • Author(s)
      Takaya Y, Akagi T, Nakagawa K, Nakayama R, Miki T, Toh N, Ito H
    • Journal Title

      Catheter Cardiovasc Interv

      Volume: Online Issue: 1 Pages: 135-141

    • DOI

      10.1002/ccd.29182

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] PFOカテーテル閉鎖術2023

    • Author(s)
      髙谷 陽一
    • Organizer
      日本心エコー図学会第34回学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Patent Foramen Ovale: Transcatheter Closure and Diagnosis2022

    • Author(s)
      髙谷 陽一
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 卵円孔開存2022

    • Author(s)
      髙谷 陽一
    • Organizer
      第30回日本心血管インターベンション治療学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Pitfalls of PFO diagnosis2022

    • Author(s)
      Yoichi Takaya
    • Organizer
      CSI Focus LAA PFO
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 心エコー図によるFusion Imagingの臨床応用2021

    • Author(s)
      髙谷陽一
    • Organizer
      第31回日本心血管画像動態学会
    • Related Report
      2021 Research-status Report
  • [Presentation] ASD・PFO閉鎖術における画像診断:心房細動など治療戦略を含めて2021

    • Author(s)
      髙谷陽一
    • Organizer
      第31回日本心血管画像動態学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 冠動脈疾患に対するCardiac Fusionイメージング2021

    • Author(s)
      髙谷陽一
    • Organizer
      第31回日本心血管画像動態学会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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