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Development of a new non-invasive method to assess severity for pulmonary hypertension in cardiac rehabilitation

Research Project

Project/Area Number 17K13047
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Rehabilitation science/Welfare engineering
Research InstitutionTohoku University

Principal Investigator

Akizuki Mina  東北大学, 大学病院, 理学療法士 (40772182)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords慢性血栓塞栓性肺高血圧症 / 肺動脈性肺高血圧症 / 呼気ガス分析 / 非侵襲的評価法 / リハビリテーション / 循環器・高血圧
Outline of Final Research Achievements

Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by organic thrombotic obstructions in the pulmonary arteries with reduced pulmonary vascular reserve.Moreover, RHC is required to diagnosis and hemodynamic assessment of pulmonary hypertension. However, RHC is invasive and imposes a heavy burden on patients if repeated.
The main findings are as follows: i) supine PETCO2 and ΔPETCO2 are useful for the evaluation of mean pulmonary arterial pressure, which is one of the parameters of CTEPH severity; ii) supine PETCO2 may help assess response to therapies.The this method is a useful non-invasive method for the evaluation of CTEPH severity and assess response to therapies.

Academic Significance and Societal Importance of the Research Achievements

本研究により,呼気ガス分析指標である呼気終末二酸化炭素分圧 (PETCO2) が、CTEPHの重症度評価や治療効果判定に有用であることが判明した。
肺高血圧症の確定診断や治療効果判定には、侵襲的な右心カテーテル検査が必須であり、繰り返し施行することは患者負担が大きい。本研究結果より、姿勢変化を伴う呼気ガス分析が非侵襲的かつ簡易的に肺高血圧症の有無および重症度評価、治療効果判定に有用である可能性が示された。
これにより、患者負担が少ない簡易な肺高血圧症の検査法として、多くの医療施設で手軽に導入されることが期待できる。

Report

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

    (5 results)

All 2019 2018 2017

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

  • [Journal Article] Usefulness of ventilatory gas analysis for the non-invasive evaluation of the severity of chronic thromboembolic pulmonary hypertension2019

    • Author(s)
      Akizuki M, Sugimura K, Aoki T, Kakihana T, Tatebe S, Yamamoto S, Sato H, Satoh K, Shimokawa H, Kohzuki M.
    • Journal Title

      International Journal of Cardiology

      Volume: 296 Pages: 149-154

    • DOI

      10.1016/j.ijcard.2019.07.018

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non‐invasive screening using ventilatory gas analysis to distinguish between chronic thromboembolic pulmonary hypertension and pulmonary arterial hypertension2019

    • Author(s)
      Akizuki M, Sugimura K, Aoki T, Kakihana T, Tatebe S, Yamamoto S, Sato H, Satoh K, Shimokawa H, Kohzuki M.
    • Journal Title

      Respirology

      Volume: 25 Issue: 4 Pages: 427-434

    • DOI

      10.1111/resp.13618

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Usefulness of ventilatory gas analysis for non-invasive differentiation between chronic thromboembolic pulmonary hypertension and pulmonary arterial hypertension2019

    • Author(s)
      Mina Akizuki
    • Organizer
      ATS 2019 International Conference
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 慢性血栓塞栓性肺高血圧症の重症度評価における呼気ガス分析の有用性2018

    • Author(s)
      秋月三奈
    • Organizer
      第82回日本循環器学会学術集会
    • Related Report
      2018 Research-status Report 2017 Research-status Report
  • [Presentation] Non-invasive Distinction Between Chronic Thromboembolic Pulmonary Hypertension and Pulmonary Arterial Hypertension Using Ventilatory Gas Analysis2017

    • Author(s)
      Mina Akizuki
    • Organizer
      American Heart Association Scientific Sessions 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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

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