2.2 million patients: does heart failure raise surgery death risk?
NCT ID NCT07634822
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study will look at medical records from over 2 million adults who had surgery in Sweden between 2021 and 2024. Researchers want to see how common heart failure is in surgical patients and whether it raises the risk of death or other problems after surgery. The goal is to better understand these risks, not to test a new treatment.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 2,200,000 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Aug 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2030
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients ≥18 years of age who underwent surgery in Sweden between 1 Jan 2021-31 Dec 2024.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * ≥18 years of age who underwent surgery in Sweden between 1 Jan 2021-31 Dec 2024 and SPOR registered operation. Exclusion Criteria: * ASA 6 (deceased patient, organ donation). * Cardiac surgery
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Institution for Diagnostic and Intervention, dep of Anestesiology and Intensive care
Umeå, Sweden
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Region Norrbotten, department of Anesthesia and Intensive Care, Sunderby Hospital
Luleå, Sweden
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Other studies related to the condition(s) this trial covers.
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