Estimating gestational age and its relation to the anthropometric status of newborns: a study comparing the Capurro and ultrasound methods with last menstrual period

Nunes, Maria de Fátima Fernandes Pussick; Pinheiro, Sandra Maria Conceição; Medrado, Fabíola Eloy da Rocha; Assis, Ana Marlúcia de Oliveira

doi:10.1590/s1519-38292011000100006

Cited by 5 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As crianças PIG e desproporcionais apresentaram menores médias de peso ao nascer, perímetro torácico e circunferência do braço, comparadas àquelas PIG proporcionais. A média de perímetro cefá-lico foi menor para PIG proporcionais quando 21 . No entanto, acredita-se que a sua utilização não influenciou os resultados, pois a razão de proporcionalidade estabelecida foi controlada pela idade gestacional.…”

Section: Resultsunclassified

Razão peso/perímetro cefálico ao nascer na avaliação do crescimento fetal

et al. 2015

View full text Add to dashboard Cite

Objetivou-se utilizar a razão peso/perímetro cefálico ao nascer para avaliar o crescimento fetal. Foi realizado um estudo de coorte retrospectiva na Zona da Mata de Pernambuco, Brasil, com 915 crianças nascidas a termo. As medidas antropométricas da criança, assistência pré-natal, fumo durante a gestação, renda familiar, escolaridade e estado nutricional materno foram coletados nas primeiras 24 horas pós-parto. As crianças foram classificadas em proporcionais (razão peso/perímetro cefálico ≥ 0,90) e desproporcionais (< 0,90). Recém-nascidos de mães fumantes, com menor idade, sem consulta pré-natal, baixos IMC, altura e prega cutânea tricipital apresentaram menores médias da razão peso/perímetro cefálico. As médias do peso, comprimento, perímetros cefálico e torácico, circunferência braquial e prega cutânea tricipital foram menores entre as crianças classificadas como desproporcionais, por meio da razão peso/perímetro cefálico, ajustadas pelo sexo da criança. Conclui-se que a razão peso/perímetro cefálico e peso ao nascer são importantes indicadores do crescimento fetal.

show abstract

Section: Resultsunclassified

Razão peso/perímetro cefálico ao nascer na avaliação do crescimento fetal

et al. 2015

View full text Add to dashboard Cite

show abstract

“… 4 , 96 Owing to limitations in the field, we relied on the Capurro somatic method to determine gestational age, which has been shown to overestimate gestational age for newborns

wk of age in Brazil; however, it can have high specificity (96%). 97 – 99 …”

Section: Discussionmentioning

confidence: 99%

In Utero Exposure to Metals and Birth Outcomes in an Artisanal and Small-Scale Gold Mining Birth Cohort in Madre de Dios, Peru

Berky,

Weinhouse,

Vissoci

et al. 2023

Environ Health Perspect

View full text Add to dashboard Cite

Background: Few birth cohorts in South America evaluate the joint effect of minerals and toxic metals on neonatal health. In Madre de Dios, Peru, mercury exposure is prevalent owing to artisanal gold mining, yet its effect on neonatal health is unknown. Objectives: We aimed to determine whether toxic metals are associated with lower birth weight and shorter gestational age independently of antenatal care and other maternal well-being factors. Methods: Data are from the COhorte de NAcimiento de MAdre de Dios (CONAMAD) birth cohort, which enrolled pregnant women in Madre de Dios prior to their third trimester and obtained maternal and cord blood samples at birth. We use structural equation models (SEMs) to construct latent variables for the maternal metals environment (ME) and the fetal environment (FE) using concentrations of calcium, iron, selenium, zinc, magnesium, mercury, lead, and arsenic measured in maternal and cord blood, respectively. We then assessed the relationship between the latent variables ME and FE, toxic metals, prenatal visits, hypertension, and their effect on gestational age and birth weight. Results: Among 198 mothers successfully enrolled and followed at birth, 29% had blood mercury levels that exceeded the U.S. Centers for Disease Control and Prevention threshold of and 2 mothers surpassed the former threshold for blood lead. The current threshold value is . Minerals and toxic metals loaded onto ME and FE latent variables. ME was associated with FE ( 0.24; 95% CI: 0.05, 0.45). FE was associated with longer gestational age ( 2.31; 95% CI: , 4.51) and heavier birth weight. Mercury exposure was not directly associated with health outcomes. A 1% increase in maternal blood lead shortened gestational age by 0.05 d ( ; 95% CI: , ), which at the threshold resulted in a loss of 3.6 gestational days and in birth weight for newborns. Prenatal care visits were associated with improved birth outcomes, with a doubling of visits from 6 to 12 associated with 5.5 more gestational days (95% CI: 1.6, 9.4) and of birth weight (95% CI: 287.6, 350.7). Discussion: Maternal lead, even at low exposures, was associated with shorter gestation and lower birth weight. Studies that focus only on harmful exposures or nutrition may mischaracterize the dynamic maternal ME and FE. SEMs provide a framework to evaluate these complex relationships during pregnancy and reduce overcontrolling that can occur with linear regression. https://doi.org/10.1289/EHP10557

show abstract

“…El test de Ballard es un método que permite calcular la edad gestacional en semanas, se utiliza en neonatos prematuros, por tanto, su uso es frecuente en el área de neonatología; constituye una práctica que puede resultar subjetiva de allí que cuando es aplicado por varios examinadores los resultados podrían ser distintos en un mismo niño. Es importante la experiencia del examinador (19).…”

Section: Test De Ballardunclassified