期刊
PRENATAL DIAGNOSIS
卷 38, 期 13, 页码 1103-1110出版社
WILEY
DOI: 10.1002/pd.5370
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资金
- Department of Clinical Medicine, Aarhus University, Denmark
Objective To evaluate the risk of adverse pregnancy outcome when trisomy 16 confined to the placenta is diagnosed and to identify possible prognostic markers for adverse outcomes in these pregnancies. Method Registered cases (n = 49) of trisomy 16 diagnosed prenatally in Denmark from 1990 to 2013 were included. Results Twenty-five of the pregnancies intended to be continued had confined placental trisomy 16 mosaicism (CPM16). Adverse pregnancy outcome was seen in 17 CPM16 pregnancies (68%), ranging from mild small for gestational age (SGA) to fetal malformations and intrauterine demise. For cases ascertained by combined first trimester screening, the median concentration of pregnancy associated plasma protein A (PAPP-A) was 0.17 MoM (IQR: 0.11 MoM). Adverse pregnancy outcome showed a trend toward an association with a high frequency of trisomic cells. Eight children (32%) were born at term with a normal birth weight and no malformations. Conclusion The risk of adverse pregnancy outcome in case of CPM16 is correlated to ascertainment by combined first trimester screening and tends to be associated with a high frequency of trisomic cells in the placenta. We recommend that variables including ascertainment, the frequency of trisomic cells, and the maternal serum concentration of PAPP-A are taken into consideration when evaluating the prognosis in CPM16 while acknowledging that these factors are strongly correlated.
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