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      Uso de hormônio de crescimento em crianças com insuficiência renal crônica: avaliação da composição corporal nos primeiros 18 Meses de tratamento Translated title: Growth hormone in children with chronic renal failure: evaluation of body composition during the first 18 months of treatment

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          Abstract

          Atualmente, é grande o impacto psicossocial da baixa estatura nas crianças e adolescentes com insuficiência renal crônica (IRC), sendo o hormônio de crescimento recombinante humano (rhGH) uma alternativa terapêutica. Avaliamos o crescimento e a composição corporal (CC) em 11 crianças pré-púberes (9M/2F; 3,5-12,8a) com IRC e baixa estatura e/ou baixa velocidade de crescimento, tratadas com rhGH (0,7-1,0UI/Kg/semana) por 18 meses. Avaliamos antropometria e CC por impedância bioelétrica tetrapolar antes e 6, 12 e 18 meses após o início do rhGH; maturação esquelética e função renal foram avaliadas antes e após 6 e 12 meses. Houve aumento significativo do peso, da altura, da VC e da massa magra (MM), com diminuição significativa da massa gorda (MG) no período de 0 a 6 meses de tratamento. Entre 0 e 12 meses houve apenas aumento significativo da altura. Entre 6 e 12 meses houve inversão da CC, com diminuição significativa da MM e aumento da MG. Entre 12 e 18 meses houve restabelecimento da CC inicial, com diminuição significativa da MG e aumento da MM. Não se observaram alterações na função renal, nem avanço exagerado da maturação esquelética. Em conclusão, o rhGH em doses de reposição por 18 meses promoveu melhora do crescimento com mudança da CC neste grupo de crianças com IRC, especialmente nos primeiros 12 meses de tratamento, sem efeitos colaterais.

          Translated abstract

          At present, the impairment of linear growth remains one of the major obstacles to successful social adaptation of children and adolescents with chronic renal insufficiency (CRI), being the recombinant human growth hormone (rhGH) a therapeutic option. We evaluated growth and body composition (BC) in 11 prepubertal patients (9M/2F; 3.5-12.8y) with CRI and short stature and/or slow growth velocity treated with rhGh (0.7-1.0IU/Kg/week) for 18 months. Anthropometry and BC, examined by a tetrapolar bioeletrical impedance, were evaluated before, 6, 12 and 18 months after rhGH treatment; biochemical examinations and bone age were assessed before, and after 6 and 12 months. Six months after the onset of rhGH, there was a significant increment of weight, height, growth velocity and lean mass, with a significant decrease of fat mass; 12 months after, there was only a significant increment of height. Between 6 and 12 months, an inversion of BC was observed, with significant increment of fat mass and decrease of lean mass. Between 12 and 18 months, BC recovered, with a significant increment of lean mass and correspondent decrease of fat mass. The residual renal function was preserved, as well as the normal increment of bone age. In conclusion, rhGH administration for 18 months to children with CRI improved growth significantly and changed the BC, particularly in the first 12 months, with no side effects.

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          Most cited references34

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          Growth at Adolescence

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            New norms of upper limb fat and muscle areas for assessment of nutritional status.

            Based on measurements of triceps skinfold thickness and upper arm circumference of a cross-sectional sample of 19,097 white subjects aged 1 to 74 yr, derived from the United States Health and Nutritional Examination Survey of 1971 to 1974, the arm muscle circumference, arm muscle area, and arm fat area were calculated. Thereafter, age- and sex-specific percentiles for all three estimates of upper arm tissues were obtained. Based on empirical and theoretical evidence, it is recommended that assessments of nutritional status be made on the basis of areas of fat and areas of muscle rather than direct skinfold thickness and arm circumference. It is also recommended that these new norms should replace those currently in use.
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              Clinical longitudinal standards for height and height velocity for North American children.

              Longitudinally-based height and height velocity charts for North American children are presented. Centiles are given for early, middle, and late maturers. The shape of the curves is taken from a review of longitudinal studies, and the prepubertal and adult centiles for height attained are taken from National Center for Health Statistics data. The charts are suitable for following an individual child's progress during observation or treatment throughout the growth period, including puberty.
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                Author and article information

                Journal
                abem
                Arquivos Brasileiros de Endocrinologia & Metabologia
                Arq Bras Endocrinol Metab
                Sociedade Brasileira de Endocrinologia e Metabologia (São Paulo, SP, Brazil )
                1677-9487
                December 2002
                : 46
                : 6
                : 661-667
                Affiliations
                [01] Campinas SP orgnameUniversidade Estadual de Campinas orgdiv1Faculdade de Ciências Médicas orgdiv2Departamento de Pediatria e Centro de Investigação em Pediatria
                Article
                S0004-27302002000600010 S0004-2730(02)04600610
                10.1590/S0004-27302002000600010
                e41ae2de-36b6-4f4d-b921-0ab1bd2b9e94

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 25 March 2002
                : 10 June 2002
                : 14 May 2002
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 7
                Product

                SciELO Brazil

                Categories
                Artigos Originais

                Growth hormone,Bioimpedância,Composição corporal,Crescimento,Hormônio de crescimento,Bioimpedance,Chronic renal insufficiency,Insuficiência renal crônica,Body composition,Growth

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