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Pediatrics. Small for gestational age (SGA) newborns are those who are smaller in size than normal for the gestational age. SGA is most commonly defined as a weight below the 10th percentile for the gestational age. [1] SGA predicts susceptibility to hypoglycemia, hypothermia, and polycythemia. [2] By definition, at least 10% of all newborns ...
Intrauterine growth restriction (IUGR), or fetal growth restriction, is the poor growth of a fetus while in the womb during pregnancy. IUGR is defined by clinical features of malnutrition and evidence of reduced growth regardless of an infant's birth weight percentile. [5] The causes of IUGR are broad and may involve maternal, fetal, or ...
Small for gestational age is defined as below the 10th percentile for gestational age and sex. [11] Low birth weight can also be caused by health issues in the person giving birth, genetic factors, or problems in the placenta. [12] A very large birth weight is usually caused by the infant having been large for gestational age. Large birth ...
Gestational age. In obstetrics, gestational age is a measure of the age of a pregnancy taken from the beginning of the woman's last menstrual period (LMP), [1] or the corresponding age of the gestation as estimated by a more accurate method, if available. Such methods include adding 14 days to a known duration since fertilization (as is ...
A baby born within the normal range of weight for that gestational age is known as appropriate for gestational age (AGA). An abnormally slow growth rate results in the infant being small for gestational age , while an abnormally large growth rate results in the infant being large for gestational age .
Large for gestational age (LGA) is a term used to describe infants that are born with an abnormally high weight, specifically in the 90th percentile or above, compared to other babies of the same developmental age. [1][2][3] Macrosomia is a similar term that describes excessive birth weight, but refers to an absolute measurement, regardless of ...
There are two ways to determine small for gestational age (SGA) infants. Many research studies agree that SGA babies are those with birth weight or crown-heel length measured at two standard deviations or more below the mean of the infant's gestational age, based on data consisting of a reference population.
Fetal growth is often classified as follows: small for gestational age (SGA), appropriate for gestational age (AGA), and large for gestational age (LGA). [19] SGA can result in low birth weight, although premature birth can also result in low birth weight.