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The cognitive development of pre-school children treated for chronic renal failure
G M Hulstijn-Dirkmaat1, I H Damhuis, M L Jetten
1Department of Medical Psychology, University Hospital Nijmegen, The Netherlands.
Insights
Early renal replacement therapy (RRT) in young children with chronic renal failure shows limited long-term cognitive benefits. Conservative treatment may offer better developmental outcomes for these pediatric patients.
Area of Science:
- Pediatric Nephrology
- Developmental Psychology
- Clinical Research
Background:
- Chronic renal failure (CRF) in young children is linked to cognitive deficits.
- Earlier initiation of renal replacement therapy (RRT) is questioned for its potential to prevent developmental delays.
Purpose of the Study:
- To investigate the impact of different treatment modalities on cognitive development in pre-school children with CRF.
- To assess if earlier RRT initiation improves cognitive outcomes compared to conservative management.
Main Methods:
- Prospective 3-year study monitoring cognitive development in 31 children (<5 years) with severe CRF.
- Comparison of cognitive scores between patients on conservative treatment (n=15) and dialysis (n=16).
- Evaluation of 12 patients transitioning from conservative care to dialysis.
Main Results:
- Initial cognitive development was significantly delayed in the total cohort (developmental index = 78.5).
- Patients on conservative treatment showed significantly higher cognitive scores than those on dialysis (P < 0.01).
- Dialysis initiation provided short-term cognitive improvement, but no significant long-term changes were observed over 2 years.
Conclusions:
- Pre-school children with CRF undergoing dialysis are at risk for cognitive developmental issues, especially with co-existing disorders.
- Conservative treatment may be associated with more favorable cognitive performance, potentially due to less severe underlying disease.
- Current RRT strategies may not fully prevent cognitive retardation in this vulnerable pediatric population.
Abstract:
Chronic renal failure in young children is associated with impaired cognitive development, but recent studies present a more optimistic perspective. An important question is whether the earlier initiation of renal replacement therapy (RRT) might prevent the reported developmental retardation. The cognitive development of 31 patients (age < 5 years with a serum creatinine clearance of < 20% of normal) undergoing different treatment modalities was monitored by repeated measurements during a prospective 3-year study. Fifteen patients received conservative treatment and 16 patients were on dialysis treatment at the start of the project. We were able to evaluate the effect of the onset of RRT on 12 patients who were transferred from conservative treatment to dialysis. At the beginning of the study, the cognitive development of the total group was significantly delayed (mean developmental index = 78.5, SD = 19.5) compared with a normal population. Patients undergoing conservative treatment scored significantly higher (P < 0.01) than those on dialysis. The effect of starting dialysis treatment appeared to be positive, but only a significant short-term improvement was observed. Follow-up evaluation of 7 patients on conservative treatment and of 9 dialysis patients over a 2-year period did not show any significant change in a positive or negative direction. The present study revealed that pre-school dialysis patients are at risk with respect to their cognitive development. This is particularly true for the group with concomitant disorders. Less severe disease in the group on conservative treatment may be assumed to be a positive contributing factor to the more normal performance of these patients.(ABSTRACT TRUNCATED AT 250 WORDS)