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  • Title: Nephrotoxicity after orthotopic liver transplantation in cyclosporin A and FK 506-treated patients.
    Author: Platz KP, Mueller AR, Blumhardt G, Bachmann S, Bechstein WO, Kahl A, Neuhaus P.
    Journal: Transpl Int; 1994; 7 Suppl 1():S52-7. PubMed ID: 11271297.
    Abstract:
    Nephrotoxicity represents a serious side-effect of immunosuppression following orthotopic liver transplantation. In order to preserve the therapeutic potential of cyclosporin (CsA) and FK 506 in human liver transplantation and to differentiate the nephrotoxic action of either drug in a clinical setting, we evaluated the incidence of early and late nephrotoxicity in 121 patients, 60 randomly assigned to CsA- and 61 to FK 506-based immunosuppression. Early postoperative renal insufficiency (between POD0 and 30; SCr 1.5-3 mg/dl) was observed to a similar extent in patients treated with CsA (36.7%) and FK 506 (42.6%). Early postoperative acute renal failure (ARF; SCr > 3 mg/dl) occurred in 18.3%, regardless of the immunosuppressive management. Approximately 50% of patients with ARF required hemodialysis (CsA: 11.7%; and FK 506: 8.3%). Mean onset of hemodialysis in CsA-treated patients was POD1 and in FK 506-treated patients, POD6, which demonstrated a different time course of drug-specific nephrotoxicity of CsA and FK 506 in early ARF. All patients with early postoperative ARF requiring hemodialysis survived more than 1 year (100% survival). New onset of late ARF (between POD30 and 365), however, occurred in 6.5% under FK 506 and in 1.7% under CsA immunosuppression due to severe infections with the multiple organ failure syndrome. This observation was consistent with the assumption of over-immunosuppression rather than a primary nephrotoxic effect. Mortality of patients with late ARF requiring hemodialysis was 100%. Late renal insufficiency appeared in 23.3% of CsA- and in 29.4% of FK 506-treated patients, and represented a slowly progressing form of drug-specific nephrotoxicity. These preliminary results demonstrated a similar outcome in terms of early and late nephrotoxicity, but longer follow-up will delineate its overall efficacy and toxicity in humans.
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