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Coordination between breathing and swallowing as a predictor of COPD exacerbation

Research Project

Project/Area Number 17K01489
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Rehabilitation science/Welfare engineering
Research InstitutionHyogo Medical University

Principal Investigator

OKU Yoshitaka  兵庫医科大学, 医学部, 教授 (20252512)

Co-Investigator(Kenkyū-buntansha) 佐藤 晋  京都大学, 医学研究科, 助教 (40378691)
室 繁郎  奈良県立医科大学, 医学部, 教授 (60344454)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsCOPD / 呼吸と嚥下の協調性 / 嚥下機能 / リハビリテーション / 予後予測 / COPD増悪因子 / 嚥下障害 / ディープラーニング / バイオフィードバック / 生理学 / トランスレーショナルリサーチ
Outline of Final Research Achievements

We found that frequent swallowing occurred immediately following inspiration (I-SW) and/or breathing resumed with inspiration (SW-I) patterns (>25% occurrence rate) are associated with COPD exacerbation (Nagami et al., BMJ Open Resp Res, 2017). In the present study, we conducted a follow-up study, and found that frequent I-SW and/or SW-I patterns are associated with the prognosis (Sato et al., ATS annual meeting 2019). Therefore, we hypothesized that identifying such subjects and treating them to reduce the I-SW/SW-I rate may prevent COPD exacerbations. We developed a device that instructs an optimal swallowing timing to a subject by sound and light to improve the breathing-swallowing coordination.

Academic Significance and Societal Importance of the Research Achievements

私共は、これまでの研究で、COPD患者において吸息中に嚥下する頻度や嚥下後の呼吸が吸息から始まる頻度が高いことが増悪に関連することを示してきた。本研究では、嚥下前後の吸息が増悪の予測因子であるだけでなく、予後関連因子であることが明らかとなった。また、本研究において、適切な嚥下のタイミングを音と光で訓練対象者に知らせる訓練器を開発した。この訓練器を用いてCOPD患者の嚥下と呼吸の協調性を改善すれば、増悪頻度を減少できる可能性がある。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2019 2017

All Journal Article (1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results)

  • [Journal Article] 【高齢者の誤嚥・肺炎予防up-to-date】 嚥下と呼吸の協調・連関2017

    • Author(s)
      越久 仁敬
    • Journal Title

      Geriatric Medicine

      Volume: 55 Pages: 1185-1189

    • Related Report
      2017 Research-status Report
  • [Presentation] COPD患者における嚥下-呼吸協調異常の長期経過と予後.2019

    • Author(s)
      永見 慎輔、佐藤 晋、越久 仁敬、佐藤 篤靖、田辺 直也、八木 直美、福永 真哉、平井 豊博、室 繁郎.
    • Organizer
      第59回日本呼吸器学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Breathing-Swallowing Discoordination Is Associated with Poor Prognosis in Patients with COPD.2019

    • Author(s)
      Sato S, Nagami S, Oku Y, Sato A, Tanabe N, Yagi N, Hirai T, Muro S.
    • Organizer
      American Thoracic Society 2019 International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Coordination between breathing and swallowing and exacerbation of respiratory diseases2019

    • Author(s)
      Oku Y.
    • Organizer
      The 24th Congress of Asian Pacific Society of Respirology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Coordination between swallowing and breathing: pathophysiology and its clinical significance.2019

    • Author(s)
      Yoshitaka Oku
    • Organizer
      9th Congress of the Federation of the Asian and Oceanian Physiological Societies (FAOPS)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] COPD患者における嚥下-呼吸協調異常の長期経過と予後2019

    • Author(s)
      永見 慎輔、佐藤 晋、越久 仁敬、佐藤 篤靖、田辺 直也、八木 直美、福永 真哉、平井 豊博、室 繁郎
    • Organizer
      第59回日本呼吸器学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Inspiration before or after swallow - predisposition to aspiration and exacerbation?2017

    • Author(s)
      Oku Y, Yagi N, Nagami S.
    • Organizer
      7th ESSD Congress
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 呼吸器疾患における呼吸と嚥下の協調性2017

    • Author(s)
      越久 仁敬
    • Organizer
      第57回日本呼吸器学会学術講演会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 呼吸と嚥下の協調性の生理学2017

    • Author(s)
      越久 仁敬
    • Organizer
      第111回臨床呼吸生理研究会学術集会
    • Related Report
      2017 Research-status Report
    • Invited

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

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