PMC9622779_01
Stenting for occlusive right renal artery. (A,B) Angiography demonstrated complete occlusion of the right renal artery with collateral perfusion. (C) Ischemic kidney was revascularized after deployment of balloon-expandable stents. The black arrow indicates collateral flow, and the white arrow indicates the occlusive right renal artery.
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F1
Angiography showed total occlusion of the right renal artery at the ostial level with collateral perfusion to the right kidney (Figure 1A,B). Sequential dilation by balloons up to 4 x 40 mm was performed followed by deployment of balloon-expandable stents and successfully revascularized the ischemic kidney (Figure 1C).
Recovery of renal function after stenting. (A) Change of serum creatinine and estimated glomerular filtration rate (GFR). (B) Change of GFR in the split kidney. (C) Split GFR ratio of the right-to-left kidney. 3m-pre indicates 3 months before treatment, pre indicates pretreatment, the post indicates post-treatment.
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F2
Scr did not decrease but seemed slightly rebound 1 month after intervention (Figure 2A). While during the long-term follow-up, his Scr fell down to the normal range along with a mild recovery of eGFR (Figure 2A). The function of the ischemic kidney remained stable, and a rise in the right-to-left sGFR ratio was presented (Figure 2B,C).