Kidney injury after heart surgery: a cost analysis
NCT ID NCT07108634
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 The study was withdrawn before enrolling any participants, so no results are available.
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Study facts
What this study's own registry entry says, in plain language.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- Lead sponsor
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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
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
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: 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
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New Cross Hospital
Wolverhampton, West Midlands, WV10 0QP, United Kingdom
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