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2023 Fiscal Year Final Research Report

Transthoracic echocardiographic diagnosis of patent foramen ovale associated with cryptogenic strole

Research Project

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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
Keywords卵円孔開存 / 脳梗塞 / 心エコー
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.

Free Research Field

心エコー

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。

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Published: 2025-01-30  

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