Salvage from hemodialysis via percutaneous transluminal renal artery stenting for a jeopardized solitary functioning kidney: A case report

      Abstract

      Atherosclerotic renal artery stenosis (ARAS) causes resistant hypertension, progressively declining renal function, and cardiac destabilization syndromes, including heart failure. We report a patient who underwent successful percutaneous transluminal renal angioplasty (PTRA) for anuretic acute kidney injury (AKI) due to ARAS. This patient, admitted to our hospital with congestive heart failure, developed anuretic AKI and started hemodialysis 3 days after admission. Computed tomography and magnetic resonance angiograms showed total occlusion of the proximal right renal artery, with atrophy of the right kidney and severe stenosis of the proximal left renal artery. These findings suggested that only the left kidney was functioning. We performed PTRA of the left renal artery in which the culprit lesion causing the AKI appeared to be located. Using intravascular ultrasound, severe calcification in the ostium of the left renal artery and a necrotic core with plaque rupture in the culprit lesion were observed. Kidney function recovered immediately after revascularization, which permitted successful withdrawal of hemodialysis. There is no clear consensus regarding the indication for PTRA in patients with ARAS; however, our experience suggests that PTRA may be beneficial for patients with a jeopardized solitary functioning kidney.
      <Learning objective: There is no clear consensus regarding the indication for percutaneous transluminal renal angioplasty (PTRA) in patients with atherosclerotic renal artery stenosis. However, patients with a jeopardized solitary functioning kidney may benefit from PTRA, which should be considered as soon as possible before irreversible ischemic changes occur. It is important to recognize that PTRA may be indicated in select similar cases.>

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