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  • Title: Factors predictive of the short- and long-term efficacy of growth hormone treatment in prepubertal children with chronic renal failure. The German Study Group for Growth Hormone Treatment in Chronic Renal Failure.
    Author: Haffner D, Wühl E, Schaefer F, Nissel R, Tönshoff B, Mehls O.
    Journal: J Am Soc Nephrol; 1998 Oct; 9(10):1899-907. PubMed ID: 9773791.
    Abstract:
    To evaluate the growth-stimulating effects of short- and long-term treatment with recombinant human growth hormone (rhGH) in growth-retarded children with chronic renal failure (CRF), 103 prepubertal children with CRF on conservative treatment (n = 74) or dialysis (n = 29) were treated with rhGH for up to 5 yr. rhGH treatment persistently increased standardized height (+ 1.6 SD scores) and predicted adult height (+7.7 cm, Tanner method) during the first 3 treatment years (P < 0.001 versus baseline), followed by percentile parallel growth during continued treatment. Both standardized height and predicted adult height were significantly more increased in conservatively treated than in dialyzed children (P < 0.001). Age, GFR, target height, and prestudy growth rate were identified as independent predictors of the response to rhGH treatment during the first and second treatment year. GFR and target height were positively correlated with the change in height SD score and the change in absolute or age-standardized height velocity. Age affected the growth response depending on which outcome measure was used: Although the first-year change in height SD score was inversely correlated with age, the change in absolute height velocity was independent of age, and the change in standardized height velocity was positively correlated with age. The growth response during the first treatment year positively predicted the long-term response. In conclusion, the short- and long-term growth response to rhGH treatment in prepubertal growth-retarded children with CRF is significantly affected by age, GFR, target height, and the pretreatment growth rate. Therefore, rhGH should be preferably started at a young age, and early in the course of CRF.
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