Renal artery stenosis presenting with nephrotic-range proteinuria: A case report

We report a rare case of renal artery stenosis (RAS) occurring in a 78-year-old man who presented with nephrotic-range proteinuria. Renal biopsy was performed and results showed mesangiopathic glomerulonephritis which was not compatible with the cause of nephrotic-range proteinuria. Proteinuria was decreased by angiotensin receptor blocker (ARB), but azotemia was aggravated. Therefore, ARB was discontinued inevitably and through work-up for the possibility RAS was performed. Computed tomography (CT) angiography revealed significant RAS on left side and a renal artery stent was inserted. After stenting, aortic dissection developed and progressed despite tight control of blood pressure. After inserting another stent graft through the true lumen of the renal artery, the patient's renal function and proteinuria improved markedly.
Source: Kidney Research and Clinical Practice - Category: Urology & Nephrology Source Type: research