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Impacto dos fatores perinatais nos déficits de crescimento de prematuros / Impact of perinatal factors on growth deficits of preterm infants
Goulart, Ana Lucia; Morais, Mauro Batista de; Kopelman, Benjamin Israel.
  • Goulart, Ana Lucia; Universidade Federal de São Paulo. Departamento de Pediatria. São Paulo. BR
  • Morais, Mauro Batista de; Universidade Federal de São Paulo. Departamento de Pediatria. São Paulo. BR
  • Kopelman, Benjamin Israel; Universidade Federal de São Paulo. Departamento de Pediatria. São Paulo. BR
Rev. Assoc. Med. Bras. (1992) ; 57(3): 272-279, May-June 2011. tab
Article in Portuguese | LILACS | ID: lil-591353
RESUMO

OBJETIVO:

Analisar fatores perinatais associados a déficit de crescimento em prematuros com 1 ano de idade corrigida.

MÉTODOS:

Estudo de coorte de prematuros com peso ao nascer < 2.000 g. Calcularam-se os percentis e escores Z de peso (P/I), comprimento (C/I) e perímetro cefálico (PC/I) com 1 ano de idade corrigida, utilizando a curva do Centers for Disease Control and Prevention.

RESULTADOS:

Entre 303 prematuros, as frequências de medidas abaixo do percentil 10 (P10) e de -2 escores Z foram, respectivamente, 43,2 por cento e 24,4 por cento de P/I, 22,1 por cento e 8,6 por cento de C/I e 15,8 por cento e 4,6 por cento de PC/I. A análise de regressão logística mostrou que fatores associados à maior chance de P/I < P10 foram reanimação ao nascimento (1,8 vez) e pequeno para a idade gestacional (3,0 vezes). Nas crianças classificadas como pequenas na idade pós-conceptual de termo, a chance de P/I < P10 foi 4,0 vezes maior naquelas com peso ao nascer entre 1.000 g e 1.499 g e 3,5 vezes maior naquelas > 1.500 g. A chance de C/I < P10 aumentou com a diminuição do comprimento ao nascer, mas não associou ao peso ao nascer. A chance de PC/I < P10 foi 2,5 vezes maior nas crianças pequenas para a idade gestacional. Nas crianças com peso < 1.000 g, a chance de PC/I < P10 foi 4,4 vezes maior quando comparadas àquelas entre 1.000 g e 1.499 g e 5,3 vezes maior quando comparadas àquelas > 1.500 g.

CONCLUSÃO:

Com 1 ano de idade corrigida, prematuros nascidos com peso < 2.000 g apresentaram frequências elevadas de déficits de crescimento, e os fatores associados variaram com o déficit analisado, destacando-se a restrição de crescimento intrauterino e pós-natal.
ABSTRACT

OBJECTIVE:

To review perinatal factors associated with a growth deficit in preterm infants at a corrected age of one year.

METHODS:

Cohort study of preterm infants with a birth weight < 2,000 g. Percentiles and Z scores of body weight (W/A), length (L/A) and head circumference (HC/A) at one year of corrected age were calculated by using the Centers for Disease Control and Prevention curves.

RESULTS:

Among 303 preterm infants, the frequencies of measures below the 10th percentile (P10) and Z scores -2 were 43.2 percent and 24.4 percent for W/A, 22.1 percent and 8.6 percent for L/A and 15.8 percent and 4.6 percent for HC/A, respectively. Logistic regression analyses showed factors associated with higher odds for W/A < P10 were resuscitation at birth (1.8 times) and small for gestational age infants (3.0 times). In infants rated as small at full-term postconceptual age, the odds for W/A < P10 were 4.0 times as high in those with a birth weight between 1,000 and 1,499 g and 3.5 times as high in those > 1,500 g. As birth length was reduced, the odds for L/A < P10 increased, but this was not associated with birth weight. The odds for HC/A < P10 were 2.5 times as high in small for gestational age infants. In infants with a body weight < 1,000 g, the odds for HC/A < P10 were 4.4 times higher, compared with those between 1,000 g and 1,499 g and 5.3 times higher if compared with those > 1,500 g.

CONCLUSION:

At a corrected age of one year, preterm infants with a birth weight < 2,000 g were found with high growth deficits frequencies, and associated factors were variable, depending on the analyzed deficit, with intrauterine and postnatal growth restriction being outstanding predictors.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Infant, Low Birth Weight / Infant, Premature / Growth Disorders Type of study: Observational study / Prognostic study / Risk factors Limits: Female / Humans / Infant / Infant, Newborn / Pregnancy Country/Region as subject: South America / Brazil Language: Portuguese Journal: Rev. Assoc. Med. Bras. (1992) Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal de São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Infant, Low Birth Weight / Infant, Premature / Growth Disorders Type of study: Observational study / Prognostic study / Risk factors Limits: Female / Humans / Infant / Infant, Newborn / Pregnancy Country/Region as subject: South America / Brazil Language: Portuguese Journal: Rev. Assoc. Med. Bras. (1992) Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal de São Paulo/BR