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Updated: May 5, 2026
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A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
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Can Radiological Renal Artery Parameters Predict Acute Kidney Injury in Infective Endocarditis Surgery?-From Imaging
Christian Dinges1, Elke Boxhammer2, Iris Kremser3
1Department of Cardiovascular and Endovascular Surgery, Paracelsus Medical University of Salzburg, 5020 Salzburg, Austria.
Diagnostics (Basel, Switzerland)
|November 27, 2024
Summary
Radiological renal artery parameters did not predict acute kidney injury (AKI) after infective endocarditis (IE) surgery. However, additional renal arteries were linked to higher short-term mortality in these patients.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Radiology
Background:
- Infective endocarditis (IE) surgery is often required for severe complications.
- Postoperative acute kidney injury (AKI) is a significant complication impacting outcomes.
- Radiological renal artery parameters' role in AKI risk post-IE surgery is largely unknown.
Purpose of the Study:
- To investigate the association between preoperative radiological renal artery parameters and postoperative AKI in patients undergoing valvular surgery for IE.
- To explore the impact of these parameters on patient mortality.
Main Methods:
- Retrospective analysis of 80 patients with IE who underwent valvular surgery (2013-2021).
- Preoperative CT scans assessed renal artery calcification, ostial calcification, renal infarctions, and additional renal arteries.
- Statistical models (logistic, linear, Cox regression) analyzed associations with AKI (KDIGO criteria) and mortality.
Main Results:
- 38.8% of patients developed AKI; no significant differences in radiological parameters were found between AKI+ and AKI- groups.
- No substantial relationship was observed between anatomical factors and AKI risk or creatinine levels.
- Cox regression identified "additional renal artery" as a significant predictor of 1-month mortality (HR: 1.747, p=0.041).
Conclusions:
- Radiological renal artery anatomical factors do not significantly predict AKI risk in IE patients post-valvular surgery.
- The presence of additional renal arteries is associated with increased short-term mortality.
- Further research is needed to identify AKI and mortality predictors in this patient population.
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