Evaluating reversible causes during out-of-hospital cardiac arrest

Relevance of Reversible Causes During OHCA (Rebecca Study)

Not applicable Interventional Medical University of Vienna · NCT05784480

This study is testing new ways to find treatable causes of cardiac arrest outside the hospital to see if it helps improve CPR performance and patient outcomes.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorMedical University of Vienna Academic / other
Locations2 sites (Vienna and 1 other locations)
Trial IDNCT05784480 on ClinicalTrials.gov

What this trial studies

This study focuses on identifying reversible causes of out-of-hospital cardiac arrest (OHCA) using point-of-care diagnostics such as emergency ultrasound, blood gas analysis, and toxicological screening. It aims to implement a structured protocol with an interactive checklist to evaluate these causes and assess their impact on CPR performance and the cognitive load of emergency physicians. A total of 100 patients experiencing OHCA will be included, and the study will analyze various CPR parameters, including hands-off time, return of spontaneous circulation (ROSC), and 30-day mortality rates.

Who should consider this trial

Good fit: Ideal candidates for this study are adults experiencing out-of-hospital cardiac arrest who can undergo point-of-care diagnostics without delaying life-saving treatment.

Not a fit: Patients under 18 years of age, pregnant individuals, or those whose diagnostic procedures would delay critical treatment will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the management of cardiac arrest by improving the identification of reversible causes, potentially leading to better patient outcomes.

How similar studies have performed: While the approach of using point-of-care diagnostics in emergency settings is gaining traction, this specific study's focus on reversible causes during OHCA is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with prehospital cardiac arrest, where POCUS, blood gas analysis as well as screening for intoxication can integrated in ALS rhythm without delay of life-saving treatment or transportation will be included.

Exclusion Criteria:

* Patients will be excluded under the age of 18, or if POCUS, blood gas analysis will lead to a delay of live-saving treatment or transportation. Furthermore, pregnant patients will be excluded.

Where this trial is running

Vienna and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Out-Of-Hospital Cardiac ArrestCardiopulmonary ArrestIntoxicationPrehospital POCUSCPRSonographyBlood gas analysisCardiac arrest
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.