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Related Experiment Videos

First trimester fetal nuchal translucency

P P Pandya1, C Santiago, R J Snijders

  • 1Harris Birthright Research Center for Fetal Medicine, King's College Hospital Medical School, London, UK.

Current Opinion in Obstetrics & Gynecology
|April 1, 1995
PubMed
Summary
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A new screening method combines fetal nuchal translucency, maternal age, and serum biochemistry for Down

Area of Science:

  • Prenatal diagnostics
  • Maternal-fetal medicine
  • Genetics

Background:

  • Down syndrome (Trisomy 21) is a common chromosomal abnormality.
  • Current screening methods have limitations in detection rates and false positives.

Purpose of the Study:

  • To review a novel combined screening approach for Down syndrome.
  • To assess its efficacy in early pregnancy.

Main Methods:

  • Integration of fetal nuchal translucency (NT) thickness measurements.
  • Inclusion of maternal age as a risk factor.
  • Analysis of maternal serum biochemistry markers.

Main Results:

  • The combined method demonstrates potential for high detection rates.

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  • Achieves over 80% identification of affected fetuses.
  • Maintains a low false-positive rate below 5%.

    • Conclusions:

    • This integrated screening strategy offers improved performance for Down syndrome detection.
    • It provides a valuable tool for prenatal screening in the first trimester.