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A new method of monitoring paraplegia due to spinal cord ischemia and a new management method for delayed onset paralysis.

Research Project

Project/Area Number 19K18269
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55050:Anesthesiology-related
Research InstitutionHamamatsu University School of Medicine

Principal Investigator

kawashima shingo  浜松医科大学, 医学部, 助教 (10467251)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords脊髄モニター / 脊椎灌流 / MEP / 臓器保護 / 出血性ショック / 近赤外分光法 / 脊髄灌流 / 脊髄虚血
Outline of Research at the Start

本研究はNIRSを術中、術後の脊髄虚血のモニターとして利用する可能性を探るため、実際に脊髄虚血時にはNIRS、MEP、レーザードップラー血流計(LDF)がどのように変化するか、様々な文節での虚血に対してどのレベルでのNIRSがどう変化するかを明らかにする。

Outline of Final Research Achievements

It is essential to understand the characteristics of spinal cord blood flow, which is complicated by collateral pathways, and to make efforts to maintain spinal cord blood flow during surgery. In this study, we investigated changes in blood flow using near-infrared spectroscopy as an intraoperative monitor and to find an effective anesthetic method for MEP, which is indispensable for intraoperative monitoring. We also evaluated whether the effects of ischemia could be monitored continuously after the surgery as a postoperative monitor. It is important to plan a staged repair as much as possible for any procedure, and after endovascular thoracoabdominal aortic repair without branch artery reconstruction, attention must be paid to the prevention of secondary attacks. Cerebrospinal fluid drainage with attention to systemic circulatory and respiratory control, improvement of anemia, and drainage rate is an effective preventive treatment for spinal cord injury.

Academic Significance and Societal Importance of the Research Achievements

近年、胸部・胸腹部ステントグラフトの普及や脊髄血液供給に関する理解が深まり、脊髄損傷の予防対策がかなり変化してきている。どのような治療法においても、確実な治療法はないのが現状であり、その要因は発生率の低さであるが、やはり、正確にモニターできるものがないということも重要な因子である。今回、手術中のモニターであるMEPを中心に、麻酔がそれに与える影響をとらえ、特に出血についてどのように影響するかを示すことができた。また、二次発作の予防に注意を払う必要があり、NIRSがその重要なモニターになる可能性が示唆される。その中でも循環の維持のために循環血液量の確保は重要な要素であった。

Report

(6 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
  • Research Products

    (1 results)

All 2020

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] Spinal cord autoregulation using near-infrared spectroscopy under normal, hypovolemic, and post-fluid resuscitation conditions in a swine model: a comparison with cerebral autoregulation.2020

    • Author(s)
      Tadayoshi Kurita, Shingo Kawashima, Koji Morita, Yoshiki Nakajima
    • Journal Title

      Journal of Intensive Care

      Volume: Volume 8 Issue: 1 Pages: 27-10

    • DOI

      10.1186/s40560-020-00443-6

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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