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Prediction chart for neurological outcomes of elderly patients with out-of-hospital cardiac arrest and the corresponding time to termination of resuscitation

Research Project

Project/Area Number 19K10555
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58010:Medical management and medical sociology-related
Research InstitutionKanazawa University

Principal Investigator

Funada Akira  金沢大学, 医学系, 協力研究員 (20602626)

Project Period (FY) 2019-04-01 – 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 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords院外心停止 / 高齢者 / 蘇生処置 / 救急医療 / 事前指示 / 医療倫理 / 心肺蘇生
Outline of Research at the Start

超高齢化社会であるわが国において、蘇生処置不要の事前指示に反した高齢者院外心停止傷病者の望まない救急搬送や蘇生処置が社会問題となっている。蘇生処置を行うべきかどうかについて判断する『根拠』が存在しないことが原因である。
本研究の目的は、超高齢化社会であるわが国において、高齢者の蘇生処置不要の事前指示が救急現場で受け入れ可能になるように『根拠』を作成することである。
本研究は、高齢者の望まない救急搬送を減少させるとともに、蘇生処置不要の事前指示が救急現場で受け入れられる社会の構築に貢献する重要な課題である。

Outline of Final Research Achievements

We evaluated elderly patients with out-of-hospital cardiac arrest (OHCA) of cardiac origin who achieved prehospital return of spontaneous circulation (ROSC). The primary outcome was 1-month neurologically intact survival, defined as a cerebral performance category (CPC) score of 1-2. Patients with OHCA were divided into 12 groups according to age (65-74, 75-89, and 90 years or over), shockable rhythm (YES/NO), and witness status (YES/NO). The time from call receipt to ROSC at which the probability of 1-month CPC 1-2 decreased to <1% was defined as the call to termination of resuscitation (TOR) duration.
Neurological outcomes and the appropriate call to TOR duration differed according to patient characteristics, including age. Our prediction chart for elderly patients with OHCA could be useful for determining TOR in the field or at the emergency department.

Academic Significance and Societal Importance of the Research Achievements

本研究で作成された神経学的転帰良好予測表を根拠として、高齢院外心停止例の蘇生処置不要の事前指示が救急現場で受け入れられるようになれば、救急現場で高齢者と家族の希望に沿った蘇生処置の差し控え、看取りを実現できると考える。また家族の心理的負担の軽減、満足度の向上、さらに救急隊、救急医療関係者、地域の医療や介護・福祉の関係者の負担の軽減や医療資源活用の効率化等に貢献すると考えられる。
本研究は、今後、さらなる増加が予想される高齢院外心停止例に対する国民の理解・意識改革、および病院前救護体制の改革に一役を担い、社会的、経済的、倫理的に非常に意義があると考える。

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

    (16 results)

All 2023 2022 2021 2020 2019

All Presentation (16 results) (of which Int'l Joint Research: 11 results)

  • [Presentation] Termination-of-resuscitation rule in the emergency department for patients with initial pulseless electrical activity after out-of-hospital cardiac arrest2023

    • Author(s)
      Akira Funada, Yoshikazu Goto, Masayuki Takamura
    • Organizer
      European Society of Cardiology congress 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Temporal trends in neurologically intact survival after paediatric out-of-hospital cardiac arrest: a nationwide population-based observational study in Japan2023

    • Author(s)
      Yoshikazu Goto, Akira Funada, Yumiko Goto
    • Organizer
      European Society of Cardiology congress 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高齢院外心停止蘇生後生存例における神経学的転帰良好の予測因子2023

    • Author(s)
      舟田 晃、後藤 由和
    • Organizer
      第50回日本救急医学会総会・学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] 高齢院外心停止例における患者とバイスタンダーの関係が神経学的転帰に与える影響2022

    • Author(s)
      舟田 晃、後藤 由和
    • Organizer
      第50回日本救急医学会総会・学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] Impact of Bystander-patient Relationship on Neurological Outcome in Witnessed Elderly Patients with Out-of-Hospital Cardiac Arrest According to Age: A Nationwide Population-based Observational Study2022

    • Author(s)
      Akira Funada, Yoshikazu Goto, Masayuki Takamura
    • Organizer
      AHA Resuscitation Science Symposium 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Differences of temporal trends in outcomes after out-of-hospital cardiac arrest between urban and rural regions in Japan: A 4-year observational study from 2016 to 20192022

    • Author(s)
      Akira Funada, Yoshikazu Goto
    • Organizer
      AHA Resuscitation Science Symposium 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Relationship between emergency medical service response time and bystander cardiopulmonary resuscitation in children with out-of-hospital cardiac arrest: a nationwide, population-based observational study2022

    • Author(s)
      Akira Funada, Yoshikazu Goto
    • Organizer
      AHA Resuscitation Science Symposium 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高齢院外心停止症例における患者背景を考慮した蘇生処置中止時間の検討2021

    • Author(s)
      舟田 晃、後藤 由和
    • Organizer
      第49回日本救急医学会総会・学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Prehospital Variables Associated with Neurologically Intact Survival in Elderly Survivors after Out-of-hospital Cardiac Arrest: Evidence from a Japanese Nationwide Population-based Cohort Study2021

    • Author(s)
      Akira Funada, Yoshikazu Goto, Masayuki Takamura
    • Organizer
      American Heart Association Resuscitation Science Symposium 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] LCAT欠損症2021

    • Author(s)
      舟田 晃
    • Organizer
      第53回日本動脈硬化学会総会・学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Effect of chest-compression-only bystander cardiopulmonary resuscitation on the likelihood of initial shockable rhythm after out-of-hospital cardiac arrest: a propensity matching analysis2020

    • Author(s)
      Akira Funada, Yoshikazu Goto, Tetsuo Maeda, Hirofumi Okada, Masayuki Takamura
    • Organizer
      European Society of Cardiology Congress 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prediction Chart for Neurological Outcomes of Elderly Patients with Out-of-Hospital Cardiac Arrest and the Corresponding Time to Termination of Resuscitation: Evidence from a Japanese Nationwide Population-based Cohort Study2020

    • Author(s)
      Akira Funada, Yoshikazu Goto, Masayuki Takamura
    • Organizer
      American Heart Association Resuscitation Science Symposium 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Validation of a Termination-of-resuscitation Rule for Patients with Refractory Out-of-hospital Cardiac Arrest at an Emergency Department in Japan2020

    • Author(s)
      Akira Funada, Yoshikazu Goto, Masayuki Takamura
    • Organizer
      American Heart Association Resuscitation Science Symposium 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of witness status and time from call to cardiopulmonary resuscitation by emergency medical service providers on neurological outcome in out-of-hospital cardiac arrest with non-shockable rhythm2019

    • Author(s)
      Akira Funada, Yoshikazu Goto, Hirofumi Okada, Tetsuo Maeda, Masayuki Takamura
    • Organizer
      European Society of Cardiology Congress 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of quality of cardiopulmonary resuscitation and prehospital epinephrine administration on neurologically intact survival in out-of-hospital cardiac arrest patients with non-shockable rhythm2019

    • Author(s)
      Akira Funada, Yoshikazu Goto, Hirofumi Okada, Tetsuo Maeda, Masayuki Takamura
    • Organizer
      European Society of Cardiology Congress 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] バイスタンダーによる目撃の有無と救急隊反応時間が除細動非適応波形の院外心停止例の神経学的転帰に及ぼす影響2019

    • Author(s)
      舟田 晃、後藤 由和、前田 哲生
    • Organizer
      第47回日本救急医学会総会・学術集会
    • Related Report
      2019 Research-status Report

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

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