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Published in: Pediatric Nephrology 7/2009

01-07-2009 | Original Article

Residual renal function and nutrition in young patients on chronic hemodialysis

Authors: Isabella Guzzo, Elvira Mancini, Séverin Kengne Wafo, Lucilla Ravà, Stefano Picca

Published in: Pediatric Nephrology | Issue 7/2009

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Abstract

Residual renal function (RRF) has been associated with a better nutritional status in adult patients on chronic dialysis, but there is as yet no data available for young patients on chronic hemodialysis (HD). We have retrospectively analyzed 3-day dietary reports and simultaneous urea kinetic monitoring data (n = 179) of 30 children, adolescents and young adults on chronic HD. The protein catabolic rate (PCR) was calculated and normalized by body weight (nPCR). The HD dialysis dose (Kt/VHD), RRF (calculated by urea clearance, Ku, and expressed as residual Kt/V) and total Kt/V (Kt/Vtot) were evaluated. In all patients, nPCR was correlated with dietary protein intake (nDPI) (p < 0.0001) and Kt/Vtot (p < 0.0001) but not with Kt/VHD (p = 0.11). In patients with RRF, Ku was associated with nPCR (p < 0.0001), while Kt/VHD was not (p = 0.10), and nPCR was higher than in patients without RRF (1.46 ± 0.41 vs. 1.03 ± 0.33 g/kg/day; p < 0.0001). Patients on recombinant growth hormone (rhGH) treatment showed higher nPCR values than those without rhGH (1.34 ± 0.41 vs. 1.01 ± 0.39 g/kg/day; p < 0.0001). In a multiple regression model including age, rhGH treatment, RRF, Kt/Vtot and Kt/VHD, and nPCR showed the best correlation with RRF (β = 0.128; p < 0.0001). In conclusion, in children, adolescents and young adults on chronic HD treatment, RRF positively affects nutrition independently of HD efficiency and rhGH treatment.
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Metadata
Title
Residual renal function and nutrition in young patients on chronic hemodialysis
Authors
Isabella Guzzo
Elvira Mancini
Séverin Kengne Wafo
Lucilla Ravà
Stefano Picca
Publication date
01-07-2009
Publisher
Springer Berlin Heidelberg
Published in
Pediatric Nephrology / Issue 7/2009
Print ISSN: 0931-041X
Electronic ISSN: 1432-198X
DOI
https://doi.org/10.1007/s00467-009-1144-7

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