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Elucidation of the mechanism of tongue root subduction and upper airway obstruction related to the formation of pathology airway securing difficulty

Research Project

Project/Area Number 17K17290
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Surgical dentistry
Research InstitutionShowa University

Principal Investigator

tachikawa satoshi  昭和大学, 歯学部, 助教 (60781036)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsCVCI / 全身麻酔 / 経動脈灌流標本 / 呼吸 / 強制換気 / CICV / 組織酸素分圧 / 上気道閉塞 / 歯科麻酔学
Outline of Final Research Achievements

Under the general anesthesia, the tongue root occurs a condition called upper airway obstruction. The condition sometimes follows a fatal outcome. When the pH in the arterial blood is reduced by an increase in blood carbon dioxide (CO 2) concentration, it is known to change the respiratory rhythm. The purpose of this study was to examine how changes in respiratory rhythm are related to upper respiratory obstruction using working heart brain stem preparation. The results by an increase in blood carbon dioxide (CO2) concentration, by each muscle group constituting the upper respiratory tract is active in advance, efficient upper respiratory tract openness improvement, it has been shown to take cooperation. It was suggested that it may be an efficient and bio-change that improves hypercapnea.

Academic Significance and Societal Importance of the Research Achievements

歯科治療を行う上で全身麻酔は広く使われているが、その安全性は保証されていなければならない。全身麻酔による致死率は極めて低いが、全身麻酔導入時に人工呼吸ができなくなり(Can’t Ventilate:CV)しかも気管挿管ができなくなり、(Can’t Intubate: CI)致死的な転帰を辿ることがある。このCVCI は歯科患者にも起こりうる危険な合併症である。この状態になると速やかに低酸素血症に陥り、心停止や重篤な脳障害が引き起こされるため、解決しなければならない重要な問題となっている。本研究の学術的意義は、この病態の解明のため、重要な基礎データとして示されることになる。

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

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 重度の小顎症を伴う顎関節強直症患者に対する周術期呼吸管理の1例2019

    • Author(s)
      松成紗帆子 立川哲史 小原明香 五島衣子 飯島毅彦
    • Journal Title

      日本歯科麻酔学会雑誌

      Volume: 47巻1号 Pages: 7-9

    • NAID

      130007580023

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Formula for Estimating the Appropriate Tube Depth for Intubation.2019

    • Author(s)
      Yao K, Goto K, Nishimura A, Shimazu R, Tachikawa S, Iijima T
    • Journal Title

      Anesthesia Progress

      Volume: 66 Issue: 1 Pages: 8-13

    • DOI

      10.2344/anpr-65-04-04

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 安全な歯科治療に必要な全身管理の知識2018

    • Author(s)
      立川哲史
    • Journal Title

      東京都歯科医師会雑誌

      Volume: 66巻6号 Pages: 259-264

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 経動脈灌流標本を用いた上気道構成筋群及び胸郭の呼吸性神経活動におけるアシドーシスの影響2019

    • Author(s)
      立川 哲史
    • Organizer
      スポーツ運動科学研究所 第8回学術研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 重度の小下顎症を伴う顎関節強直症患者に対するnCPAPを用いた呼吸管理の経験2018

    • Author(s)
      松成 紗帆子 立川 哲史, 渡邊 敏光, 金村 茉紗子, 五島 衣子, 飯島 毅彦
    • Organizer
      第46回日本歯科麻酔学会総会・学術集会 IFDAS2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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

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