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Validation of a new method for estimating spontaneous breathing effort using changes in central venous pressure: a pigmodel study.

Research Project

Project/Area Number 18K08904
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55060:Emergency medicine-related
Research InstitutionNational Cardiovascular Center Research Institute (2023)
Osama Woman's and Children's Hospital (2018-2022)

Principal Investigator

Kyogoku Miyako  国立研究開発法人国立循環器病研究センター, 病院, 医師 (00795445)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords中心静脈圧 / 自発呼吸努力 / 食道内圧 / 胸腔内圧 / 中心静脈カテーテル / 呼吸不全 / 肺傷害 / 呼吸仕事量 / モニタリング / 急性呼吸不全 / 呼吸仕事 / 集中治療医学
Outline of Final Research Achievements

Evaluating the magnitude of spontaneous breathing effort is important. Generally, esophageal pressure is used to assess spontaneous breathing effort, but its measurement is complex and not widely used in clinical practice. On the other hand, central venous catheters are commonly used in critically ill patients. Previously, we devised a simple correction method to estimate changes in pleural pressure from central venous pressure (CVP) waveforms under mechanical ventilation and reported its accuracy. To demonstrate that the magnitude of spontaneous breathing effort can similarly be estimated from CVP waveforms under spontaneous breathing, we compared the estimated values obtained by correcting CVP with esophageal pressure in pigs with respiratory failure under various conditions. As a result, this correction method was able to estimate the magnitude of spontaneous breathing effort with accuracy comparable to that of esophageal pressure.

Academic Significance and Societal Importance of the Research Achievements

大きすぎる自発呼吸は肺傷害を引き起こし、小さすぎる自発呼吸もまた人工呼吸器誘発性横隔膜機能不全による呼吸器離脱困難を引き起こすことが知られており、重症度に応じて適切なレベルの呼吸努力にコントロールすることが推奨されている。一般的には食道内圧を用いて呼吸努力の評価を行われることが一般的であるが、手技が煩雑であり、臨床で普及していない。
重症呼吸不全患者には、中心静脈カテーテルが挿入されていることも多く、中心静脈圧を測定することは容易である。既存のデバイスを使用してより簡便に適切なレベルの呼吸努力にコントロールした人工呼吸管理を行うことができれば、人工呼吸管理日数の短縮に貢献できる可能性がある。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (7 results)

All 2024 2022 2021 2020

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

  • [Journal Article] Estimating the change in pleural pressure using the change in central venous pressure in various clinical scenarios: a pig model study2024

    • Author(s)
      Miyako Kyogoku, Soichi Mizuguchi, Taku Miyasho, Yusuke Endo, Yu Inata, Kazuya Tachibana, Yuji Fujino, Kazuto Yamashita, Muneyuki Takeuchi
    • Journal Title

      Intensive Care Med Exp

      Volume: 12 Issue: 1 Pages: 4-4

    • DOI

      10.1186/s40635-023-00590-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Estimation of change in pleural pressure in assisted and unassisted spontaneous breathing pediatric patients using fluctuation of central venous pressure: A preliminary study2021

    • Author(s)
      Okuda Nao、Kyogoku Miyako、Inata Yu、Isaka Kanako、Moon Kazue、Hatachi Takeshi、Shimizu Yoshiyuki、Takeuchi Muneyuki
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 3 Pages: e0247360-e0247360

    • DOI

      10.1371/journal.pone.0247360

    • Related Report
      2020 Research-status Report
  • [Presentation] A new method for estimating spontaneous breathing effort using changes in central venous pressure: a pig model study.2024

    • Author(s)
      Miyako Kyogoku, Taku Miyasho, Yusuke Endo, Yu Inata, Muneyuki Takeuchi
    • Organizer
      International Symposium on Intensive Care & Emergency Medicine.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中心静脈圧に基づく自発呼吸下補助換気中の胸腔内圧の変化の推測:ブタモデル研究2022

    • Author(s)
      京極都 遠藤雄介 川村篤 水口壮一 伊東幸恵 宮庄拓 稲田雄 山下和人 竹内宗之
    • Organizer
      第49回集中治療学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 中心静脈圧に基づく 自発呼吸下補助換気中の胸腔内圧の変化の推測 -ブタモデル研究-2022

    • Author(s)
      京極都、遠藤雄介、川村篤、水口壮一、伊東幸恵、宮庄拓、稲田雄、山下和人、竹内宗之
    • Organizer
      第49回日本集中治療医学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 胸腔内持続陰圧ドレナージの食道内圧測定への影響 The effect of negative pressure generated by pleural drainage system on the measurement of esophageal pressure: an animal study.2020

    • Author(s)
      京極都、水口壮一、宮庄拓、遠藤雄介、稲田雄、川村篤、橘一也、山下和人、竹内宗之
    • Organizer
      集中治療学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 胸腔内持続陰圧ドレナージの 食道内圧測定への影響2020

    • Author(s)
      京極都、水口壮一、宮庄拓、遠藤雄介、稲田雄、川村篤、橘一也、山下和人、竹内宗之
    • Organizer
      集中治療学会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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