Maternal Serum Triple Analyte Screening and Adverse Pregnancy Outcome

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Abstract
The prognostic value of maternal serum triple analyte screening with AFP, hCG and uE3 (unconjugated estriol) was studied early in the second trimester of pregnancy. In this case-control study of 38 women and 76 matched controls derived from a consecutive screened population of 28,897, case selection was based upon elevated MSAFP and MShCG (> or = 2 MOM) and low MSuE3 (< or = 0.6 MOM). Adverse pregnancy outcome was found in 65.8% of cases and 2.6% of controls (RR 25, 95% CI 6.3-100.0). When increased odds (> or = 1 in 270) for Down's syndrome were considered with the abnormal analyte screen, fetal/congenital defects, fetal neonatal loss or low birth weight were noted in 17/26 cases (65.4%). Elevated MSAFP and MShCG with low values for estriol, with or without increased odds for Down's syndrome, imply an unfavorable prognosis for both the fetus and the child.

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