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Should heart scans be done right after cardiac arrest? large trial aims to find out

NCT ID NCT02309151

Completed Knowledge-focused Sponsor: Uppsala University Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 1,003 people who had a cardiac arrest outside the hospital and were revived. It compared getting a coronary angiogram (an X-ray of the heart's arteries) within 2 hours versus waiting 3 days. The goal was to see if early imaging improves survival at 30 days. Participants had no clear signs of a heart attack on their first ECG.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Immediate coronary angiography (a procedure to look at heart arteries with X-rays)
What this could lead to
If immediate angiography proves better, it could become the standard approach for cardiac arrest patients without clear heart attack signs, potentially saving more lives.
What could go wrong
This trial is completed but results may not show a clear benefit, and the findings might not apply to all cardiac arrest patients. The procedure itself carries small risks like bleeding or kidney injury.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

cardiac arrest Out-of-Hospital Cardiac Arrest

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

OUT-OF-HOSPITAL CARDIAC ARREST

Contacts and locations

Locations

  • Aalborg University hospital

    Aalborg, Denmark

  • Aarhus University Hospital

    Aarhus, Denmark

  • Albert Schweitzer Hospital

    Dordrecht, Netherlands

  • Amsterdam UMC

    Amsterdam, Netherlands

  • Antonius Hospital

    Nieuwegein, Netherlands

  • Catharina Ziekenhuis

    Eindhoven, Netherlands

  • Danderyd Sjukhus

    Stockholm, Sweden

  • Haaglanden Medisch Centrum

    The Hague, Netherlands

  • Karolinska Universitetssjukhuset

    Huddinge, Sweden

  • Karolinska Universitetssjukhuset

    Solna, Sweden

  • Odense University hospital

    Odense, Denmark

  • Radboud University Medical Center

    Nijmegen, Netherlands

  • Sahlgrenska Universitetssjukhuset

    Gothenburg, Sweden

  • Skåne Universitetssjukhus

    Malmö, Sweden

  • Skånes Universitetssjukhus

    Lund, Sweden

  • Södersjukhuset AB

    Stockholm, Sweden

  • Treant Hospital

    Emmen, Netherlands

  • Umeå Universitetssjukhus

    Umeå, Sweden

  • Uppsala University hospital

    Uppsala, 75185, Sweden

  • Zuyderland Hospital

    Heerlen, Netherlands

  • Örebro Universitetssjukhus

    Örebro, Sweden

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