LOW MATERNAL SERUM LEVELS OF PREGNANCY ASSOCIATED PLASMA PROTEIN-A (PAPP-A) IN THE 1ST TRIMESTER IN ASSOCIATION WITH ABNORMAL FETAL KARYOTYPE
LOW MATERNAL SERUM LEVELS OF PREGNANCY ASSOCIATED PLASMA PROTEIN-A (PAPP-A) IN THE 1ST TRIMESTER IN ASSOCIATION WITH ABNORMAL FETAL KARYOTYPE
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DOI：
10.1111/j.1471-0528.1993.tb12973.x
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发表时间：
1993-04-01
期刊：
影响因子：
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通讯作者：
GRUDZINSKAS, JG
中科院分区：
文献类型：
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作者：
BRAMBATI, B;MACINTOSH, MCM;GRUDZINSKAS, JG
Objective To assess the relation between maternal serum pregnancy associated plasma protein A (PAPP-A) in the first trimester and the outcome of pregnancy by karyotype.Design A retrospective study of PAPP-A levels in blood samples collected prior to chorionic villus sampling.Setting Milan, Italy.Subjects Five hundred twenty-two women, aged 20 to 47, at 7 to 11 weeks gestation, prior to undergoing chorionic villus sampling. Four hundred forty-five women had a pregnancy with a normal karyotype; in 30 pregnancies the karyotype was abnormal (including 14 cases of Down's syndrome and 7 of trisomy 18).Main outcome measures Normal or abnormal fetal karyotype. Serum PAPP-A at 6 to 11 weeks gestation measured by radioimmunoassay.Results The median value of PAPP-A in the abnormal group was 0.27 multiples of the normal median (MoM). This is significantly lower than the median value in the normal group (1.01 MoM) (95% CI for the difference 0.46-0.84 MoM; P
