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Predictive Value of Renal Resistance Index Combined with Postoperative Serum Cystatin C for Cardiac Surgery-Associated Acute Kidney Injury

Predictive Value of Renal Resistance Index Combined with Postoperative Serum Cystatin C for Cardiac Surgery-Associated Acute Kidney Injury

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600122103
Enrollment
Unknown
Registered
2026-04-09
Start date
2026-05-02
Completion date
Unknown
Last updated
2026-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

cardiac surgery-associated acute kidney injury

Interventions

Sponsors

The First Affiliated Hospital of Xinjiang Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Patients scheduled to undergo elective cardiac surgery under general anesthesia with cardiopulmonary bypass (including coronary artery bypass grafting, heart valve replacement, congenital heart disease correction, etc.) in our hospital were enrolled; 2.Aged = 18 years; 3.Normal preoperative renal function (estimated glomerular filtration rate [eGFR] = 60 ml/min/1.73m² and serum creatinine within the normal reference range); 4.Patients and their family members provided informed consent and signed the informed consent form.

Exclusion criteria

Exclusion criteria: 1.Pre-existing acute kidney injury (meeting the KDIGO criteria) or stage 4–5 chronic kidney disease (eGFR 1.5, platelet count < 50×10?/L); contraindications to transesophageal echocardiography; 3.Emergency surgery; reoperation; non-sinus rhythm; 4.Administration of nephrotoxic drugs within 24 hours before surgery (e.g., aminoglycoside antibiotics, non-steroidal anti-inflammatory drugs); 5.Incomplete clinical data.

Design outcomes

Primary

MeasureTime frame
RRI;Serum Cystatin C;Serum creatinine ;

Countries

China

Contacts

Public ContactZhan Haiting

The First Affiliated Hospital of Xinjiang Medical University

zhtcjy@163.com+86 151 9915 8669

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 17, 2026