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Development of a new mechanical ventilation method to minimize lung injury in acute respiratory failure

Research Project

Project/Area Number 18K08815
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55050:Anesthesiology-related
Research InstitutionOsaka University

Principal Investigator

Uchiyama Akinori  大阪大学, 大学院医学系研究科, 准教授 (00324856)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsMechanical ventilation / Respiratory failure / Lung injury / Endotracheal cuff / Dead space / COVID19 / 人工呼吸 / Ventilator-free days / コルチコステロイド / ウイルス排泄 / 腹臥位 / 筋弛緩 / 人工呼吸法 / 肺傷害 / 筋弛緩薬 / 腹臥位療法 / 人工呼吸関連肺障害 / 呼気抵抗の減少 / 声門機能維持 / ECCO2R / 膜型人工肺 / 人工呼吸関連肺傷害 / 気管チューブ / ECMO / THAM / 二酸化炭素除去 / アルカリ化薬 / 気管チューブカフ圧
Outline of Final Research Achievements

Mechanical ventilation is essential in the treatment of acute respiratory failure, but it also has the potential to cause lung injury, which can worsen the prognosis. This is known as ventilator-associated lung injury, and prevention of its occurrence is crucial. Lung-protective ventilation strategies, such as limiting tidal volume and airway pressure, and appropriate positive end-expiratory pressure settings, are important. However, since there are limitations to conventional lung-protective ventilation, we investigated a ventilation strategy that can significantly reduce dead space by controlling the cuff pressure of the endotracheal tube and improve the ventilation setting, using a model lung. In addition, we retrospectively examined factors that may affect the prognosis during early-stage lung-protective ventilation, which combined muscle relaxant administration and prone positioning in critically ill COVID-19 patients.

Academic Significance and Societal Importance of the Research Achievements

急性呼吸不全における人工呼吸法による肺傷害の問題点を指摘し、新たな肺保護換気法を提案した点が社会的に重要である。新型コロナウイルス感染症の流行など、呼吸器系の疾患が注目を集めているおり、この研究の成果は新しい治療法として発展する可能性がある。急性呼吸不全による人工呼吸の合併症を最小限に抑えることは、この研究はその解決に向けた一歩となる成果である。また、新型コロナウイルス感染症による重症呼吸器疾患に対する肺保護換気法の有効性について、後方視的な検討を行った点が社会的に重要である。この研究の結果が、現在の医療現場において、重症呼吸器疾患患者の治療に役立つことが期待される。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2022 2021 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] Advanced cuff pressure control ventilation (ACPCV); a bench study of a new concept of mechanical ventilation2021

    • Author(s)
      Ryota Higeno, Akinori Uchiyama, Yusuke Enokidani, Yuji Fujino
    • Journal Title

      J Med Eng Technol .

      Volume: April 12 Issue: 4 Pages: 1-12

    • DOI

      10.1080/03091902.2021.1900437

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Attaining low tidal volume ventilation during patient triggered ventilation in sedated subjects.2019

    • Author(s)
      Koide M, Uchiyama A, Yamashita T, Yoshida T, Fujino Y
    • Journal Title

      Respiratory Care

      Volume: 64 Issue: 8 Pages: 890-898

    • DOI

      10.4187/respcare.06197

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 重症新型コロナ肺炎患者における人工呼吸離脱困難に関連する因子の検討2022

    • Author(s)
      星野太希、徳平夏子、坂口了太、小山有紀子、榎谷祐亮、石垣凌、久保直子、平田晴彦、内山昭則、藤野裕士
    • Organizer
      第49回日本集中治療医学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 二酸化炭素吸入モデルを用いたECCO2Rとアルカリ化薬投与の自発呼吸努力抑制効果 の検討2019

    • Author(s)
      山下智範 内山昭則 田中愛子 吉田健史 藤野裕士
    • Organizer
      第41回日本呼吸療法医学会学術集会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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