title: Screening term LGA neonates for hypoglycemia: the Colorado vs. the Portland Intrauterine Growth Chart.
abstract: It was postulated that identification of term (LGA) large for gestational age newborns by the Portland Intrauterine Growth Curve rather than the Colorado Curve would classify a lesser number of neonates as LGA, but would identify the LGA neonates at risk for hypoglycemia. One hundred inborn neonates who plotted LGA on the Colorado Chart were reviewed. Sixty-one infants were LGA on the Portland Chart. Of the 100 infants, 17 were found to have dextrostix less than 45 mg% in the first two hours of life, 15 of these had quantitative blood glucose (BG) test performed. Eleven of the 15 neonates had a BG less than 40 mg%; all 11 hypoglycemic neonates were identified LGA on the Colorado Graph whereas only seven were identified LGA by the Portland Graph. The authors conclude that the Colorado Graph is a better tool in their population than the Portland in identifying term LGA neonates at risk for hypoglycemia.
mesh_terms: D005314:Embryonic and Fetal Development; D005320:Fetal Macrosomia / Q000175:diagnosis*; D006801:Humans; D007003:Hypoglycemia / Q000175:diagnosis*; D007231:Infant, Newborn / Q000097:blood; D012307:Risk Factors