Clinical outcomes and survival in pediatric patients initiating chronic dialysis: a report of the NAPRTCS registry
The 2011 annual report of the North American Pediatric Renal Transplant Cooperative Study (NAPRTCS) registry comprises data on 6482 dialysis patients over the past 20 years of the registry.
The study compared clinical parameters and patient survival in the first 10 years of the registry (1992–2001) with the last decade of the registry (2002–2011).
There was a significant increase in hemodialysis as the initiating dialysis modality in the most recent cohort (42% vs. 36%, p < 0.001). Patients in the later cohort were less likely to have a hemoglobin <10 g/dl [odds ratio (OR) 0.68; confidence interval (CI) 0.58–0.81; p < 0.001] and height z-score <2 standard deviations (SD) below average (OR 0.68, CI 0.59–0.78, p < 0.0001). They were also more likely to have a parathyroid hormone (PTH) level two times above the upper limits of normal (OR 1.39, CI 1.21–1.60, p < 0.0001). Although hypertension was common regardless of era, patients in the 2002–2011 group were less likely to have blood pressure >90th percentile (OR 1.39, CI 1.21–1.60, p < 0.0001), and a significant improvement in survival at 36 months after dialysis initiation was observed in the 2002–2011 cohort compared with the 1992–2001 cohort (95% vs. 90%, respectively). Cardiopulmonary causes were the most common cause of death in both cohorts. Young age, growth deficit, and black race were poor predictors of survival.
The survival of pediatric patients on chronic dialysis has improved over two decades of dialysis registry data, specifically for children <1year.
KeywordsEnd-stage renal disease Hypertension Cardiovascular disease Anemia Secondary hyperparathyroidism Children
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