Preimplantation Genetic Screening: Not for Everyone

  • Kimberly W. KeefeEmail author
  • Elizabeth S. Ginsburg


Preimplantation genetic screening (PGS) of embryos in assisted reproductive technology (ART) is a technique in which an embryologist removes a small number of cells from the trophectoderm, the cells destined to become the placenta, in a day 5 or 6 blastocyst to evaluate the embryo’s DNA for ploidy status. The use of this technology has become widespread, advertised as a way to maximize success rates across the general IVF population. However, the current published literature does not fully support this conclusion. Instead, the literature suggests PGS seems to be most useful in women greater than age 35 who have higher rates of aneuploidy and in women with robust ovarian reserve; those women are more likely to have enough embryos to have successful blastulation and have embryos for biopsy. Patients with low embryo numbers may not produce blastocysts to biopsy and therefore no embryo transfer and no chance of pregnancy in that cycle. The data are mixed on the benefits of PGS in the setting of other diagnoses such as recurrent pregnancy loss. Though PGS has a role in the field of assisted reproductive technology, further research is needed to clarify which specific patient populations are most likely to benefit from the technique.


Preimplantation genetic screening (PGS) Comprehensive chromosome screening (CCS) Preimplantation genetic testing (PGT) In vitro fertilization (IVF) Assisted reproductive technology (ART) 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Center for Infertility and Reproductive SurgeryBrigham and Women’s HospitalBostonUSA

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