Using ultrasound to prevent and treat kidney injury after heart surgery
Official title: Prevention and Treatment of Acute Kidney Injury After Cardiac Surgery Guided by Combined Cardiac and Splanchnic Sonographic Assessment
Run by Onassis Cardiac Surgery Centre · NCT06972082 · Data updated 2026-11-12
This study is testing if using ultrasound to check for fluid buildup in the liver and kidneys can help prevent and treat kidney problems after heart surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 304 (estimated) |
| Sponsor | Onassis Cardiac Surgery Centre Academic / other |
| Locations | 1 site (Athens, Kallithea) |
| Status | Recruiting |
| Started | June 29, 2023 |
| Main results expected | June 30, 2025 |
| Study ends | October 2025 |
| Registry record updated | May 14, 2025 |
| Trial ID | NCT06972082 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients in the Cardiac Surgery ICU who develop acute kidney injury within 48 hours of cardiac surgery.
✕Probably not a fit
Patients with severe chronic renal failure, liver cirrhosis, or critical preoperative conditions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to determine if ultrasound evaluation of venous congestion in the liver and kidneys can guide treatment to prevent and manage acute kidney injury (AKI) following cardiac surgery. Participants will either receive the ultrasound-guided treatment or a placebo, with fluid management based on the Venous Excess Ultrasound Score (VEXUS). Kidney function will be monitored daily for seven days post-surgery, and data will be collected for statistical analysis to assess the effectiveness of this approach compared to standard care.
Why it matters
Potential benefit: If successful, this approach could significantly reduce the incidence of acute kidney injury in patients undergoing cardiac surgery.
How similar studies have gone: While the use of ultrasound in this context is innovative, similar studies have shown promise in managing fluid balance and kidney function in surgical patients.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients in the Cardiac Surgery ICU who develop acute kidney injury according to KDIGO criteria, within 48 hours of ICU admission after cardiac surgery * Elective and non-elective cardiac surgery. Exclusion Criteria: * Patient refusal * Severe chronic renal failure (GFR\<15 mL/min/m2 or on hemodialysis). * Critical preoperative condition (severe cardiogenic shock, resuscitated cardiac arrest, support with mechanical circulatory assist devices). * Liver cirrhosis or inferior vena cava obstruction. * Pregnancy. * Morbid obesity (BMI\>40 kg/m2). * Delirium or other condition that prevents the performance of an ultrasound study.
Where it's running
-
Onassis Cardiac Surgery Center
Athens, Kallithea, Greece Recruiting
Study contacts
- Study coordinator: Stavros Dimopoulos, PhD, EDIC
- Email: stdimop@gmail.com
- Phone: 00306973956974
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Remote Ischemic Preconditioning at Different Times After Heart Valve Surgery
This study tests whether applying brief, controlled blood-flow restrictions to a limb at different times after heart valve surgery can help protect organs and reduce complications like kidney injury.
-
Clinical decision support to help consider SGLT2 inhibitors after AKI in type 2 diabetes
This pilot test checks if a CDS message given to clinicians can help decide whether to consider SGLT2 inhibitors for adults with type 2 diabetes who recently had acute kidney injury.
-
Biomarkers to predict CSA-AKI risk before heart surgery
This study tests new biomarkers to see if they can predict CSA-AKI risk in adults undergoing cardiovascular surgery.
-
Reducing Endotoxin Burden in Septic Shock Patients on CRRT with the oXiris Filter
This trial tests whether using the oXiris hemofilter during continuous kidney replacement helps lower endotoxin levels in adults with septic shock who need CRRT.
-
Perioperative GFR Monitoring to Predict CSA-AKI and CA-AKI
This study tests whether perioperative transcutaneous fluorescence GFR measurements can predict CSA-AKI or CA-AKI in adults undergoing cardiovascular procedures or iodine contrast exposure.
-
Restarting RAS inhibitors after AKI: a quick test in hospitalized adults
This pilot study tests whether restarting renin-angiotensin system inhibitors early after acute kidney injury is feasible and safe in hospitalized adults already using these medicines.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.