Abstract
Being born small for gestational age (SGA) is classified as being born with a fetal weight or an abdominal circumference below the 10th percentile for gestational age. In the past, a variety of cutoffs have been used, adding some uncertainty to the value of individual definitions of SGA. Of note, the diagnosis of SGA does not allow a distinction between infants who are constitutionally small, growth-restricted and small, or growth-restricted but not small. In general, up to 70 % of infants are considered constitutionally small due to maternal ethnicity, parity, body mass index, and female gender, and thus are not at risk of increased morbidity and mortality; it is important to realize that fetal size is not equivalent to fetal growth. Therefore, a single fetal biometry will not be able to reliably distinguish between SGA and intrauterine growth restriction (IUGR).
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Zabransky, S. (2013). Obstetrical Aspects. In: Zabransky, S. (eds) Caring for Children Born Small for Gestational Age. Springer Healthcare, Tarporley. https://doi.org/10.1007/978-1-908517-90-6_7
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DOI: https://doi.org/10.1007/978-1-908517-90-6_7
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