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First trimester screening.

Sarah C Ellestad¹, Steven R Wells, Jeffrey A Kuller

¹Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC 27710, USA. sarah.ellestad@duke.edu

Gynecologic and Obstetric Investigation

|February 3, 2005

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Screening for fetal aneuploidy, such as Down syndrome, is now available for all pregnant women, not just those of advanced maternal age. Advances in serum screening and ultrasound enable earlier and broader aneuploidy detection.

Area of Science:

Prenatal diagnostics
Maternal-fetal medicine
Genetics

Background:

Aneuploidy screening traditionally focused on advanced maternal age.
Recent technological advancements have expanded screening accessibility.
Early detection of chromosomal abnormalities is crucial for informed decision-making.

Purpose of the Study:

To review current methods for aneuploidy screening.
To discuss the effectiveness of new screening technologies.
To highlight the expansion of screening to all maternal age groups.

Main Methods:

Review of serum screening markers.
Analysis of ultrasound markers for aneuploidy.
Evaluation of first and second-trimester screening protocols.

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Main Results:

Serum and ultrasound technologies have improved aneuploidy detection rates.
Screening can now be effectively offered in the first and second trimesters.
These methods provide valuable information for women of all ages.

Conclusions:

Aneuploidy screening is increasingly accessible to all pregnant women.
Technological progress has enhanced the efficacy and timing of screening.
Wider screening empowers women with earlier diagnostic insights.