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  • Title: Stable long-term renal function after pediatric liver transplantation.
    Author: Herlenius G, Hansson S, Krantz M, Olausson M, Kullberg-Lindh C, Friman S.
    Journal: Pediatr Transplant; 2010 May; 14(3):409-16. PubMed ID: 20331519.
    Abstract:
    Long-term exposure to calcineurin inhibitors increases the risk of CKD in children after LT. The aims of this study were to study renal function by measuring GFRm before and yearly after LT, to describe the prevalence of CKD (stage III: GFR 30-60 mL/min/1.73 m(2)) and to investigate if age and underlying liver disease had an impact on long-term renal function. Thirty-six patients with a median age of 2.9 years (0.1-16 yr) were studied. Median follow-up was 6.5 (2-14 yr). GFRm decreased significantly during the first six months post-transplantation with 23% (p < 0.001). Thereafter renal function stabilized. At six months, 17% (n = 5) of the children presented CKD stage III and at five yr the prevalence of CKD III was 18% in 29 children. However, in 13 children with a 10-year follow-up it was 0%. None of the children required renal replacement therapy after LT. When analyzing renal function of those children younger than two yr (n = 14) and older than two yr (n = 17) at the time of transplantation, we found that in both cohorts the filtration rate remained remarkably stable during the five-yr observational period. However, there was a statistically significant (p < 0.05) difference in the percentual decrease in GFRm between the groups during the first six months after LT 13% and 31%, respectively. Baseline GFRm according to diagnosis did not differ between the groups. During the first six months after LT, patients transplanted for hepatic malignancy (n = 6) and those with metabolic liver disease (n = 4) had a percentage loss of GFRm of 32% and 35%, respectively. The corresponding loss of GFRm in patients with other diseases was 10-19%. Six months post-transplantation mean GFRm in the group with malignant liver disease was 65 +/- 15 mL/min/1.73 m(2) and in the group with other diseases (n = 24) 82 +/- 17 mL/min/1.73 m(2) (p < 0.05). At one, three and five yr post-transplantation there was no longer a statistically significant difference between these cohorts. Our findings suggest that there can be a long-term recovery of renal function after LT in children.
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