Preimplantation genetic screening

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

Chromosome aneuploidy is naturally occurring, typically sporadic and generally leads to non-viable offspring. The use of PGS has the potential to select the best embryos for transfer and reduce the risk of losing a much wanted pregnancy. However there is no high-level clinical evidence from randomized control trials to demonstrate a beneficial effect of PGS on the live birth rate after IVF, and for women of advanced age, PGS using cleavage stage biopsy and FISH may lead to a significant decrease in live birth rates. Technical limitations and chromosomal mosaicism confound the effectiveness of PGS, but a test that could identify aneuploidy with 100 % accuracy would be a significant advance; no such test has yet been developed. New approaches in the application of PGS should be evaluated carefully before their introduction into clinical practice.

Original languageEnglish
Title of host publicationPreimplantation Genetic Diagnosis in Clinical Practice
PublisherSpringer-Verlag London Ltd
Pages175-185
Number of pages11
ISBN (Electronic)9781447129486
ISBN (Print)9781447129479
DOIs
Publication statusPublished - 1 Jan 2014

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