C hronic kidney disease (CKD) affects more than 10% of people worldwide. 1 Renal fibrosis is the common endpoint of most CKD. 2 Therefore, preventing or
Renal replacement therapy offers good chances of survival in infants without life-threatening comorbidity. Patient survival of infants treated for CKD in the first year of life was comparable to that of older children.
SummaryRenal replacement therapy has become available for the majority of patients suffering from severe congenital chronic kidney disease (CKD). Data on the longterm neurocognitive outcome and the impact of early kidney transplantation (KTx) in this setting is unclear. Neurocognitive outcomes in 15 patients (11 male) with isolated congenital CKD (stage 3-5) requiring KTx at a mean age of 2.8 AE 1.3 were assessed at a mean age of 8.3 AE 1.4 years. Patients underwent neurological examination and testing for neuromotor and neurocognitive function using three independent tests. Pre-emptive KTx was performed in six patients, and nine patients were dialyzed prior to KTx for a mean period of 11.1 AE 8.6 months. Neuromotor function was abnormal in 8/15 patients. HAW-IK-III showed a global intelligence quotient (IQ) of 93.5 AE 11.4 (P = 0.05) due to a significantly reduced performance IQ of 89.1 AE 11.3 (P < 0.01). In three patients, the global IQ was clinically significantly reduced by >1 SD to <85. In patients with neuromotor dysfunction, performance IQ was lower than in patients with normal neuromotor function (83.8 AE 10.2 vs. 96.2 AE 9.0, P = 0.04). Time on dialysis was inversely correlated to verbal IQ (r = 0.78, P = 0.02). Pre-emptive KTx and duration of dialysis treatment <3 months was associated with superior neurocognitive outcome. Early (pre-emptive) KTx results in superior long-term neurocognitive outcome in children with severe congenital CKD.
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