No-Flow Duration and Outcomes After Cardiogenic Out-of-Hospital Cardiac Arrest in Older Adults - Report - MDSpire
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Impact of No-Flow Duration on Outcomes in Older Adults Experiencing Cardiogenic Out-of-Hospital Cardiac Arrest

  • By

  • Yuki Kishihara

  • Masahiro Kashiura

  • Hideto Yasuda

  • Shunsuke Amagasa

  • Hiroyuki Tamura

  • Chisato Nakajima

  • Yuki Shiraoka

  • Masashi Okubo

  • Takashi Moriya

  • September 1, 2026

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Impact of No-Flow Duration on Outcomes in Older Adults Experiencing Cardiogenic Out-of-Hospital Cardiac Arrest

Overview

This study investigates the relationship between no-flow duration and outcomes in older adults experiencing cardiogenic out-of-hospital cardiac arrest (OHCA).

Background

The aging population is increasingly affected by out-of-hospital cardiac arrest (OHCA), particularly with cardiogenic causes. Understanding the impact of no-flow duration on survival and neurological outcomes is crucial. Current evidence suggests that longer no-flow times correlate with poorer outcomes, yet specific thresholds for older adults remain underexplored.

Data Highlights

No numerical data was provided in the source material.

Key Findings

  • No-flow time is inversely associated with favorable outcomes in older adults experiencing cardiogenic OHCA.
  • Favorable neurologic outcomes are uncommon when no-flow time exceeds 15 to 20 minutes, based on prior research.
  • Older adults may have shorter no-flow time thresholds due to increased susceptibility to hypoxic injury.
  • The study utilized data from the All-Japan Utstein Registry.
  • Exclusion criteria included no-flow intervals exceeding 30 minutes and cases with non-cardiogenic rhythms.

Clinical Implications

Identifying a no-flow duration threshold can aid clinicians in making informed resuscitation decisions for older adults. This information is particularly valuable given the complexities of resuscitation in this demographic.

Conclusion

The study presents findings on no-flow duration thresholds in older adults experiencing cardiogenic OHCA.

Related Resources & Content

  1. JAMA Network Open, 2023 -- Reevaluating No-Flow Time in Elderly Patients Experiencing Out-of-Hospital Cardiac Arrest
  2. Frontiers in Cardiovascular Medicine, 2026 -- Neurological outcomes and survival after prehospital ECPR: the impact of low-flow time
  3. Intensive Care Medicine, 2018 -- Influence of Age and Low-Flow Duration on Neurological Outcomes in Extracorporeal Cardiopulmonary Resuscitation
  4. Clinical Research in Cardiology, 2008 -- TIMI 3 Flow Following Primary Angioplasty as a Key Prognostic Indicator in Acute Myocardial Infarction Patients
  5. Highlights of the 2025 American Heart Association's Guidelines for CPR and ECC, 2025
  6. Correlation Between Cardiopulmonary Resuscitation Duration and Neurological Outcomes Following Out-of-Hospital Cardiac Arrest: A Dose-Response Meta-Analysis, 2025
  7. Age–Treatment Interactions in Out-of-Hospital Cardiac Arrest: A Nationwide Registry Analysis - PMC, 2023
  8. Highlights of the 2025 American Heart Association's Guidelines for CPR and ECC
  9. Correlation Between Cardiopulmonary Resuscitation Duration and Neurological Outcomes Following Out-of-Hospital Cardiac Arrest: A Dose-Response Meta-Analysis.
  10. Age–Treatment Interactions in Out-of-Hospital Cardiac Arrest: A Nationwide Registry Analysis - PMC

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