Two transplant renal arteries: One important lesson

Area of Science:

• Nephrology
• Transplant Surgery
• Vascular Imaging

Background:

• Ischemic nephropathy is a potential cause of graft dysfunction in renal transplant recipients.
• Acute kidney injury (AKI) in this population necessitates a high index of suspicion for reversible causes.
• Iodinated contrast agents pose risks for patients with renal dysfunction.

Purpose of the Study:

• To highlight the importance of considering ischemic nephropathy in renal transplant recipients with unexplained AKI.
• To evaluate the utility of carbon dioxide (CO2) angiography as an alternative imaging modality.

Main Methods:

• Case review of renal transplant recipients presenting with unexplained AKI.
• Utilized CO2 angiography to assess renal vasculature in patients with contraindications to iodinated contrast.

Main Results:

• Ischemic nephropathy was identified as a potentially reversible cause of AKI.
• CO2 angiography proved effective in evaluating the vasculature in patients with renal dysfunction.

Conclusions:

• Early suspicion and diagnosis of ischemic nephropathy are crucial for potential graft salvage.
• CO2 angiography is a viable and safe alternative for vascular assessment in renal transplant recipients with impaired renal function.