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  • Title: Recurrence of nephrotic proteinuria in children with focal segmental glomerulosclerosis after renal transplantation treated with plasmapheresis and immunoadsorption: case reports.
    Author: Fencl F, Simková E, Vondrák K, Janda J, Chadimová M, Stejskal J, Seeman T.
    Journal: Transplant Proc; 2007 Dec; 39(10):3488-90. PubMed ID: 18089416.
    Abstract:
    Idiopathic focal segmental glomerulosclerosis (FSGS) is believed to be caused by a circulating permeability factor. FSGS recurrence is common after transplantation. The treatment is still a matter of debate; plasmapheresis (PE) and immunoadsorption (IA) are often used. We report on PE and IA in the treatment of two children with recurrent nephrotic proteinuria. Patient 1 was a 16-year-old girl who had recurrence of nephrotic proteinuria on the first day after transplantation (proteinuria-19 g/d). Primary immunosuppressive therapy was changed to high-dose cyclosporine and cyclophosphamide; plasmapheresis was started on day 4. Altogether we performed 53 PE and 38 IA procedures. During the first month, PE procedures were performed with no more than a 2-day interval between sessions, and the girl achieved partial remission (proteinuria 3 g/d). PE was then stopped. After 2 months, a relapse of heavy proteinuria occurred. This relapse was successfully treated again with intensified PE treatment. After achieving remission, a chronic PE regimen was started (PE once a week), similar to the previous series. The child remained in partial remission. Seven months after renal transplantation, she was switched from PE to IA, because of severe hypoproteinemia. Graft biopsy performed at 4 months showed effacement of the foot processes. At the present time she has a good graft function and 3 g/d proteinuria. Patient 2 was a 13-year-old girl with FSGS since 9 years. On the second day after renal transplantation she developed nephrotic proteinuria (proteinuria-14 g/d), which was treated with 39 PE and 16 IA treatments. She went into complete remission on the intensified PE regimen, had one relapse, and was switched to chronic IA. Graft biopsy performed at 2 weeks after transplantation showed effacement of the foot processes. At the present time she has good graft function and low proteinuria (0.3 g/d). In conclusion, intensified PE or IA treatments induced remission of recurrent nephrotic range proteinuria. Chronic PE or IA can maintain patients with frequent relapses in long-term remission.
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