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      Growth of preterm low birth weight infants until 24 months corrected age: effect of maternal hypertension Translated title: Crescimento de prematuros de baixo peso até a idade de 24 meses corrigidos: efeito da hipertensão materna

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          Abstract

          OBJECTIVE: To evaluate the growth pattern of low birth weight preterm infants born to hypertensive mothers, the occurrence of growth disorders, and risk factors for inadequate growth at 24 months of corrected age (CA). METHODS: Cohort study of preterm low birth weight infants followed until 24 months CA, in a university hospital between January 2009 and December 2010. Inclusion criteria: gestational age < 37 weeks and birth weight of 1,500-2,499 g. Exclusion criteria: multiple pregnancies, major congenital anomalies, and loss to follow up in the 2nd year of life. The following were evaluated: weight, length, and BMI. Outcomes: growth failure and risk of overweight at 0, 12, and 24 months CA. Student's t-test, Repeated measures ANOVA (RM-ANOVA), and multiple logistic regression were used. RESULTS: A total of 80 preterm low birth weight infants born to hypertensive mothers and 101 born to normotensive mothers were studied. There was a higher risk of overweight in children of hypertensive mothers at 24 months; however, maternal hypertension was not a risk factor for inadequate growth. Logistic regression showed that being born small for gestational age and inadequate growth in the first 12 months of life were associated with poorer growth at 24 months. CONCLUSION: Preterm low birth weight born infants to hypertensive mothers have an increased risk of overweight at 24 months CA. Being born small for gestational age and inadequate growth in the 1st year of life are risk factors for growth disorders at 24 months CA.

          Translated abstract

          OBJETIVO: Avaliar o padrão de crescimento de prematuros de baixo peso nascidos de mães hipertensas, a ocorrência de distúrbios de crescimento e os fatores de risco para inadequado crescimento aos 24 meses de idade corrigida (IC). MÉTODOS: Estudo de coorte de prematuros de baixo peso acompanhados até 24 meses IC, em um hospital universitário, entre janeiro de 2009 e dezembro de 2010. Critérios de inclusão: idade gestacional < 37 semanas e peso de nascimento de 1500-2499 g. Excluídas: gestações múltiplas, anomalias congênitas maiores e perda de seguimento no segundo ano de vida. Foram avaliados: peso, comprimento e IMC. Desfechos: falha de crescimento e risco de sobrepeso com 0, 12 e 24 meses de IC. Teste t de Student, X2, Anova-RM e regressão logística múltipla foram usados. RESULTADOS: Foram estudados 80 prematuros de baixo peso nascidos de mães hipertensas e 101 de mães normotensas. Houve maior risco de sobrepeso em crianças de mães hipertensas aos 24 meses, entretanto a hipertensão materna não foi fator de risco para inadequado crescimento. A regressão logística mostrou que nascer pequeno para idade gestacional e ter inadequado crescimento nos primeiros 12 meses de vida associaram-se com pior crescimento aos 24 meses. CONCLUSÃO: Prematuros de baixo peso nascidos de mães hipertensas têm risco aumentado de sobrepeso aos 24 meses de IC. Ser pequeno para idade gestacional e ter inadequado crescimento no primeiro ano são fatores de risco para distúrbios no crescimento aos 24 meses de IC.

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          Most cited references24

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          A United States national reference for fetal growth.

          To develop a current national fetal growth curve that can be used as a common reference point by researchers to facilitate investigations of the predictors and consequences of small and large for gestational age delivery. Single live births to United States resident mothers in 1991 (n = 3,134,879) were used for the development of this curve, which was compared with four previously published fetal growth curves. Techniques were developed to address cases with implausible birth weight-gestational age combinations and to smooth fetal growth curves across gestational age categories. In general, the previously published fetal growth curves underestimated the 1991 United States reference curve. This underestimation is most apparent during the latter weeks of gestation, approximately 33-38 weeks. Our findings indicate that the prevalence of fetal growth restriction (FGR) will vary markedly, depending on the fetal growth curve used. Furthermore, many previously published fetal growth curves no longer provide an up-to-date reference for describing the distribution of birth weight by gestational age and for determining FGR that is consistent with the most recent live birth data for the entire United States.
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            Crescimento e desenvolvimento a longo prazo do prematuro extremo

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              Catch-up growth in children born growth restricted to mothers with hypertensive disorders of pregnancy

              In preterm hypertensive disorders of pregnancy, fetal growth restriction (FGR) occurs frequently. The timing and severity of FGR impacts childhood growth and is associated with metabolic changes later in life.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                jped
                Jornal de Pediatria
                J. Pediatr. (Rio J.)
                Sociedade Brasileira de Pediatria (Porto Alegre )
                1678-4782
                June 2015
                : 91
                : 3
                : 256-262
                Affiliations
                [1 ] Universidade Estadual Paulista Brazil
                [2 ] Universidade Estadual Paulista Brazil
                [3 ] Universidade Estadual Paulista Brazil
                Article
                S0021-75572015000300256
                10.1016/j.jped.2014.07.008
                25431856
                1a33646b-b8cd-45ae-850d-c3f5728536bb

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0021-7557&lng=en
                Categories
                PEDIATRICS

                Pediatrics
                Child,Low birth weight,Premature,Maternal hypertension,Growth,Criança,Baixo peso ao nascer,Prematuro,Hipertensão materna,Crescimento

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