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  • Title: Long-term glomerular filtration rate following pediatric liver transplantation.
    Author: Wiesmayr S, Jungraithmayr TC, Ellemunter H, Stelzmüller I, Bonatti H, Margreiter R, Zimmerhackl LB.
    Journal: Pediatr Transplant; 2005 Oct; 9(5):604-11. PubMed ID: 16176417.
    Abstract:
    In adult patients a significant proportion of chronic renal failure after liver transplantation (LTX) has been described. This was attributed mainly to nephrotoxicity caused by Calcineurin inhibitors (CNI). If these results are transferable to pediatric patients was the aim of this study. Forty-five pediatric patients with a LTX performed between 1988 and 2003 were evaluated. Glomerular filtration rate was calculated using the Schwartz formula (calculated GFR (cGFR) (mL/min/1.73 m2) = kx height (cm)/serum creatinine (mg/dL)). Median age at LTX was 4 yr (range 0.3-18.1). Pretransplant median cGFR was significantly elevated with 157.5 mL/min/1.73 m2. Within the first 3 months after LTX median cGFR normalized to a median value of 102.7 (p < 0.05 vs. pretransplant cGFR). During long-term follow-up median cGFR remained stable with calculated values of 108.0 two years and 112.6 five years after transplantation. Using a linear and an exponential one compartment mathematical modeling of renal function the calculated GFR was stable even for very long observation times (n > 10 yr). Liver insufficiency prior to transplantation was associated with glomerular hyperfiltration. After successful liver transplantation cGFR normalized within the first 3 month and, in contrast to the reported GFR impairment in adult liver transplant recipients, remained stable, even in long-term follow-up.
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