Article

Curva dos valores normais de peso fetal estimado por ultra-sonografia segundo a idade gestacional

Cadernos de Saúde Pública (Impact Factor: 0.98). 12/2000; 16(4). DOI: 10.1590/S0102-311X2000000400026
Source: DOAJ

ABSTRACT

Este trabalho teve por objetivo avaliar a evolução do peso fetal estimado em gestações normais de 20 a 42 semanas. Quanto ao desenho e métodos empregados na pesquisa, realizou-se estudo descritivo de um universo constituído por 2.874 gestantes normais da cidade de Campinas, efetuando-se exame ultra-sonográfico obstétrico de rotina com medida da biometria fetal e utilizando-se, para o cálculo do peso fetal, a fórmula de Hadlock et al. (1991). Calcularam-se os valores dos percentis 10, 50 e 90 do peso fetal, por idade gestacional, com construção de curva posteriormente alisada mediante ajuste polinomial de 2º grau. Como resultado, obteve-se que o valor do percentil 50 foi de 368 gramas na 20ª semana, 1.512 gramas na 30ª semana, atingindo 3.417 gramas na 42ª semana. Constatou-se ter havido ganho médio de 200 gramas de peso por semana, de 27 a 38 semanas, a partir de quando o incremento diminuiu. Concluiu-se que a disponibilidade de curva brasileira do peso fetal estimado normal permitirá o diagnóstico pré-natal de seus desvios pela ultra-sonografia.

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Available from: Jose G Cecatti, Sep 21, 2014
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    • "USG eram emitidos segundo o protocolo do Setor e os dados de interesse do estudo eram coletados em formulário específico, no momento da realização do exame. Para a classificação do PFE em função da IG, foi utilizada a curva modificada dos valores normais de PFE por USG segundo a IG, elaborada inicialmente por Cecatti et al. 7 , em 2000. No presente estudo, a modificação dessa curva correspondeu à utilização de um ajuste polinomial de segundo e terceiro grau para obter as curvas de regressão dos percentis que melhor se adaptassem à tendência dos valores individuais. "
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    Full-text · Article · Jan 2010 · Revista brasileira de ginecologia e obstetrićia: revista da Federação Brasileira das Sociedades de Ginecologia e Obstetrícia
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