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Kidney injury after heart surgery: a cost analysis

NCT ID NCT07108634

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aimed to compare costs and health outcomes for heart surgery patients who developed acute kidney injury versus those who did not. Researchers planned to review medical records from UK hospitals over a 10-year period. The study was withdrawn before enrolling any participants, so no results are available.

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.

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Consecutive patients who have undergone cardiac surgery at the various cardiac surgery centres in the UK and who developed AKI in their post-operative phase will be selected. This group will be propensity-matched 1:1 to patients who did not develop AKI. A total of around 8000 patients' data will be accessed to obtain approximately 4000 patients' (2,000 in each group) data for analysis.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Show 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: 1. Patients undergoing cardiac surgery (elective or in-house urgent) from Jan 1st, 2013, to December 31st, 2023 (excluding patients during 2020 \& 2021 - due to confounding Covid-19 impact on AKI) 2. Cardiopulmonary bypass machine was used during cardiac surgery 3. Patient's data available in the databases (Minimum dataset required for propensity matching: age, gender, diabetes history, LVEF, priority of surgery, pre-op haemoglobin \& SCr levels, cardiac surgery performed, CPB duration, Euroscore or LogEuroscore, RRT use, post-op D1\&/or D2 \&/or D3 SCr) Exclusion Criteria: 1. Emergency surgery 2. Patient with incomplete dataset\* 3. Surgery performed without CPB 4. Patients already dialysis dependent 5. Patient with eGFR \<20 mL/min/1.73 m² 6. Cardiac surgery requiring deep hypothermic circulatory arrest (DHCA) 7. Patients previously treated with RenalGuard® Therapy 8. Patient has opted-out of research (data opt-out) \* Data completeness - These variables need to be complete for the propensity matching: age, gender, diabetes history, LVEF, priority of surgery, pre-op haemoglobin \& SCr levels, cardiac surgery performed, CPB duration, Euroscore or LogEuroscore, RRT use, post-op D1\&/or D2 \&/or D3 SCr

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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.

Contacts and locations

Locations

  • New Cross Hospital

    Wolverhampton, West Midlands, WV10 0QP, United Kingdom

More trials for these conditions

Other studies related to the condition(s) this trial covers.