PMC9899480_01
A 73-year-old male with failed deceased donor kidney transplant after cardiopulmonary arrest secondary to COVID-19 pneumonia. (a) Digital subtraction angiography demonstrates a patent renal artery anastomosis in the early arterial phase. (b) There is poor parenchymal enhancement secondary to renal allograft rejection. (c) Arteriogram shows almost complete renal transplant embolization after administering 100-300 um and 300-500 um particles. (d) Distal coil embolization was also performed.
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F1
The transplanted renal artery was selected, and an arteriogram demonstrated poor parenchymal enhancement of the renal transplant [Figure 1]. The renal transplant was embolized utilizing 100-300 microm and 300-500 microm Embospheres (Merit Medical Systems, South Jordan, UT, USA) with no further parenchymal enhancement [Figure 1]. The main renal artery was, then, embolized using two 6 x 2 mm and two 7 x 3mm tornado coils (COOK MEDICAL, Bloomington, IN) [Figure 1]. Post-embolization arteriogram demonstrated complete embolization of the renal artery with no further opacification [Figure 1].
PMC9899480_02
(a) A 70-year-old male with failed deceased donor kidney transplant secondary to recurrent membranous nephropathy. (a) Digital subtraction angiography demonstrates a patent renal artery anastomosis in the early arterial phase. (b) There is complete renal transplant embolization after administering 20 mL of dehydrated ethanol with supporting balloon occlusion catheter.
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F2
During the intervention, an arteriogram depicted a patent renal anastomosis arising from the external iliac artery [Figure 2]. Arteriogram showed mild stasis of flow and repeat embolization with 10 mL of dehydrated ethanol demonstrated satisfactory embolization [Figure 2].