NCT07821983Not yet recruiting
Renal Doppler Indices for Predicting Acute Kidney Injury After Isolated CABG
Role of Renal Augmented Velocity Index and Resistive Index in Predicting Postoperative Acute Kidney Injury After Isolated Coronary Artery Bypass Grafting
Source: ClinicalTrials.gov · Last updated 16 Sept 2026
Brief summary (registry, in English)
Acute kidney injury can occur after coronary artery bypass grafting (CABG). This prospective, single-center observational study will evaluate whether two measurements obtained from renal Doppler ultrasound-the renal augmented velocity index (AVI) and renal resistive index (RRI)-can help predict postoperative acute kidney injury. About 200 adults undergoing elective isolated CABG with cardiopulmonary bypass will have bilateral renal Doppler examinations one day before surgery, within 60 minutes after admission to the intensive care unit, and 6 hours after intensive care unit admission. The primary outcome is acute kidney injury within the first 7 days after surgery, defined according to Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Ultrasound measurements will be analyzed offline and will not influence clinical care.
- Status (registry)
- Not yet recruiting
- Study type
- Observational
- Enrollment
- 200 (estimated)
- First submitted
- 10 Sept 2026
- Start date
- 15 Sept 2026
- Primary completion date
- 30 Sept 2027
- Lead sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
- Diseases
- Coronary artery disease
- NCT number
- NCT07821983
What you commit to
- Study type: Observational
- Planned participants: 200
- From 15 Sept 2026 to the primary completion date, 30 Sept 2027
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Preoperative chronic dialysis or renal replacement therapy.
- Urgent or emergency surgery.
- Off-pump coronary artery bypass grafting or conversion of the planned surgical technique.
- Renal transplant, solitary kidney, significant renal artery stenosis, previous renal artery intervention, hydronephrosis, or other relevant renal vascular or structural disease.
Other illness
- Combined cardiac surgery, including valve, aortic, or another major additional procedure.
- Clinically significant rhythm disturbance preventing acquisition of three interpretable cardiac cycles.
Other
- Inadequate bilateral preoperative renal Doppler examination.
- Withdrawal of consent.
Who the study is looking for
- Age 18 years or older.
- Scheduled for elective isolated coronary artery bypass grafting with cardiopulmonary bypass (on-pump).
- Able and willing to provide written informed consent.
- Both kidneys present.
- Adequate bilateral preoperative renal Doppler signal for study measurements.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Bursa Yuksek Ihtisas Training and Research Hospital Coordinator of this site? Confirm its status | Bursa | Turkey (Türkiye) | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.