Early dialysis after heart surgery: study halted, but clues remain
NCT ID NCT05175053
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether starting dialysis early helps people with acute kidney injury after heart surgery. It included 44 adults who developed moderate kidney damage within a week of surgery. The trial was stopped early, so results are limited, but the goal was to see if early treatment could lower the risk of death.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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44 people
The number who actually took part.
- Started
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Dec 2021
- Finished
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Feb 2026
- 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.
- Ages
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19 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients within 7 days after cardiac surgery * Acute kidney injury (AKI) described as Kidney Disease: Improving Global Outcomes (KDIGO) stage 2 (urine output \<0.5mL/kg/h for ≥6h or 2-fold increase in serum creatinine compared with baseline) Exclusion Criteria: * previous renal replacement therapy * AKI secondary to obstructive nephropathy * previous kidney transplantation
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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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Seoul National University Bundang Hospital
Seongnam, South Korea
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Seoul National University Hospital
Seoul, South Korea
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- A simple protein test might flag kidney danger after heart surgery
- Can better nurse training reduce ICU complications?
- Ultrasound could guide safer fluid dosing after heart surgery
- Can a heart drug rescue failing kidneys in the ICU?
- Which dialysis method works best for ICU kidney failure? a Head-to-Head test