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  • Title: Mid-arm circumference/head circumference ratios for identification of symptomatic LGA, AGA, and SGA newborn infants.
    Author: Georgieff MK, Sasanow SR, Mammel MC, Pereira GR.
    Journal: J Pediatr; 1986 Aug; 109(2):316-21. PubMed ID: 3734969.
    Abstract:
    Mid-arm circumference/head circumference ratios (MAC/HC) and birth weights obtained in 73 neonates were studied to compare which of these growth measurements could more accurately predict risk of metabolic complications resulting from either acceleration or retardation of fetal growth. The MAC/HC ratio was more sensitive than birth weight in distinguishing symptomatic large for gestational age (LGA) infants who were born to diabetic mothers from other LGA infants who were asymptomatic, and symptomatic from asymptomatic small for gestational age infants. In addition, the MAC/HC ratio identified symptomatic appropriate for gestational age (AGA) infants born to diabetic mothers and AGA infants with signs and symptoms of growth retardation. The MAC/HC is more useful than birth weight in assessing newborn infants at risk for the metabolic complications associated with fetal growth disorders.
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