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Establishment of an inhalation anesthetic administration system for artificial cardiopulmonary bypass

Research Project

Project/Area Number 19K18242
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Sumiyoshi Miho  三重大学, 医学系研究科, リサーチアソシエイト (50510971)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2021: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2020: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2019: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Keywords人工心肺 / sPD-L1 / 免疫麻痺 / PD-L1 / SIRS / PDL1 / デスフルラン / 体外式人工心肺 / 心臓血管麻酔 / ガスクロマトグラフィー
Outline of Research at the Start

揮発性麻酔薬は、臓器虚血プレコンディショニング効果を有すると考えられており、心臓手術の生命予後を改善する可能性のある唯一の周術期薬物治療として期待されている。しかし、揮発性麻酔薬によるCPB中麻酔管理を実現するためには、i) 人工肺からの麻酔薬投与システム、ii) 手術室麻酔薬汚染を防御する排気システム、およびiii) CPB中の正確な麻酔薬濃度モニタリングの3点を確立することが急務である。申請者は本研究によって、これら未決の重要な3つの問題を解決する専用のCPBシステム構築を行う。

Outline of Final Research Achievements

For the purpose of analyzing inflammatory conditions caused by artificial cardiopulmonary resuscitation from multiple angles, plasma sPD-L1 levels were measured in patients with out-of-hospital cardiac arrest and analyzed in relation to pathological conditions.
The results suggest that ischemia-reperfusion during cardiopulmonary resuscitation abnormally activates immune cells and endothelial cells to release sPD-L1 into the blood, which may be involved in the pathogenesis of immunocompromise and organ failure associated with PCAS.

Academic Significance and Societal Importance of the Research Achievements

人工心肺中は全身炎症状態が惹起されることを勘案し、人工心肺による炎症状態を多角的に分析し炎症のメカニズムを明らかにすることによって心臓手術における患者予後の改善に寄与する。

Report

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

    (2 results)

All 2021

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

  • [Journal Article] Elevated Plasma Soluble PD-L1 Levels in Out-of-Hospital Cardiac Arrest Patients2021

    • Author(s)
      Sumiyoshi Miho、Kawamoto Eiji、Nakamori Yuki、Esumi Ryo、Ikejiri Kaoru、Shinkai Toru、Akama Yuichi、Ito-Masui Asami、Imai Hiroshi、Gaowa Arong、Park Eun Jeong、Shimaoka Motomu
    • Journal Title

      Journal of Clinical Medicine

      Volume: 10 Issue: 18 Pages: 4188-4188

    • DOI

      10.3390/jcm10184188

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 院外心停止(OHCA)患者において、血中PD-L1濃度は上昇し、 腎機能障害やリンパ球数の低下と相関する2021

    • Author(s)
      住吉 美穂
    • Organizer
      日本集中治療医学会第5回東海北陸支部学術集会
    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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