Human Reproduction Update Advance Access originally published online on May 3, 2006
Human Reproduction Update 2006 12(5):513-518; doi:10.1093/humupd/dml021
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An update on antenatal screening for Downs syndrome and specific implications for assisted reproduction pregnancies
1 Department of Obstetrics and Gynaecology, Sheba Medical Center, Tel-Hashomer, Israel and 2 Department of Obstetrics and Gynaecology, University College London, London, UK
3 To whom correspondence should be addressed at: Department of Obstetrics and Gynaecology, Sheba Medical Center, Tel-Hashomer 52321, Israel. E-mail: boazmd{at}zahav.net.il
Since the introduction of antenatal serum screening for Downs syndrome (DS) more than two decades ago, several screening approaches have been utilized in routine clinical practice. The current DS screening strategies involve mid-trimester serum biochemistry tests, first trimester tests combining sonographic markers and serum biochemistry and integration of first and second trimester markers. In this review, we evaluate the performance of DS screening strategies according to the Serum, Urine and Ultrasound Screening Study (SURUSS), the First and Second Trimester Evaluation of Risks (FASTER) Trial and the Serum Biochemistry and Fetal Nuchal Translucency Screening (BUN) Study. We also evaluate the performance of first trimester screening in studies and meta-analyses by other groups. Specific issues related to assisted reproduction technology (ART) pregnancies are also addressed in this review.
Key words: Downs syndrome / integrated screening / nuchal translucency / screening
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