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  • Title: Donor affected by hemosiderosis: is kidney transplantation possible? A case report.
    Author: Piattoni J, Bonucchi D, Gissara Z, Baisi B, Cappelli G.
    Journal: Transplant Proc; 2008; 40(6):1827-8. PubMed ID: 18675062.
    Abstract:
    Marginal donors (advanced age, comorbidities, and so on) provide an increasing contribution to the kidneys used to alleviate the relative organ shortage. We describe the evaluation process and clinical outcome of two kidneys with hemosiderosis used as a double graft. The donor was a 59-year-old hypertensive man, known to have a mechanical mitral valve, who died from a cerebral hemorrhage, with a normal serum creatinine (SCr) and kidneys with normal appearances at sonography. A protocol donor biopsy showed a Karpinsky score of 5 for both kidneys. A double graft was therefore scheduled. The recipient was a 59-year-old man, on dialysis because of chronic glomerulonephritis. HLA match was incompatibility 4/6; immunosuppression was based on steroids, cyclosporine, and mycophenolate mofetil with basiliximab as induction therapy. The grafts showed delayed function with dialysis treatments performed from postoperative day (POD) 1. On POD 2, a magnetic resonance imaging (MRI) study showed the typical appearance of siderosis. Pearl's staining performed on a protocol biopsy confirmed the presence of widespread iron deposits. On POD 5, a recipient renal biopsy showed a superimposed severe acute tubular necrosis. Renal function recovered slowly; SCr at discharge on POD 22 was still 4.2 mg/dL. Two months later, the SCr was 2.2 mg/dL. A second MRI performed at 3 years and 6 months after transplantation confirmed a progressive removal of iron overload while the patient had stable renal function (glomerular filtration rate) of 33 mL/min and SCr: 2.3 mg/dL. We concluded that donors with hemosiderosis should be treated as marginal donors and may be grafted based on a pretransplant biopsy.
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