First Quarter Screening for Aneuploidy
نویسندگان
چکیده
منابع مشابه
Aneuploidy screening in the first trimester.
This article reviews the performance of first trimester screening for chromosomal anomalies using various combinations of ultrasound and maternal serum biochemical modalities. Detection rates in excess of 90% can be routinely achieved for Trisomy 21, Trisomy 13, Trisomy 18 using a combination of fetal nuchal translucency (NT) thickness and maternal serum free ss-hCG and PAPP-A at 11 + 0 to 13 +...
متن کاملScreening for Fetal Aneuploidy
Aneuploidy is defined as having one or more extra or missing chromosomes, leading to an unbalanced chromosome number in a cell. Because each chromosome consists of hundreds of genes, the loss or gain of large chromosomal segments disrupts significant amounts of genetic material and often results in a nonviable pregnancy or offspring that may not survive after birth. In the case of a surviving n...
متن کاملFirst Quarter 2001 Newsletter
industrial structure, technology and energy and environmental policy. Deregulation in the different markets is moving foreward. The restructuring of the petroleum and energy industry the last couple of years has been fundamental. Ecommerce will definitivly influence the energy industry and trade patterns. Technology offers significantly increased efficiencies for all energy sources. On the glob...
متن کاملFirst Trimester Aneuploidy Screening Program for Preeclampsia Prediction in a Portuguese Obstetric Population
Objective. To evaluate the performance of a first trimester aneuploidy screening program for preeclampsia (PE) prediction in a Portuguese obstetric population, when performed under routine clinical conditions. Materials and Methods. Retrospective cohort study of 5672 pregnant women who underwent routine first trimester aneuploidy screening in a Portuguese university hospital from January 2009 t...
متن کاملFirst trimester aneuploidy screening in the presence of a vanishing twin: implications for maternal serum markers.
OBJECTIVE To assess the impact of a vanishing twin on the levels of the biochemical markers used in the first trimester aneuploidy screening. METHODS A retrospective analysis of free beta-hCG and PAPP-A levels in 270 women with a normal singleton fetus with ultrasound evidence of a vanishing twin pregnancy. Marker levels (as MoM) were compared in three groups-76 women with a second empty gest...
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ژورنال
عنوان ژورنال: Revista de Chimie
سال: 2020
ISSN: 0034-7752,2668-8212
DOI: 10.37358/rc.20.1.7851