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F1000Res. 2016 Oct 28;5:2591. eCollection 2016.

Recent advances in prenatal genetic screening and testing.

Author information

  • 1Department of Obstetrics and Gynecology and Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA.

Abstract

The introduction of new technologies has dramatically changed the current practice of prenatal screening and testing for genetic abnormalities in the fetus. Expanded carrier screening panels and non-invasive cell-free fetal DNA-based screening for aneuploidy and single-gene disorders, and more recently for subchromosomal abnormalities, have been introduced into prenatal care. More recently introduced technologies such as chromosomal microarray analysis and whole-exome sequencing can diagnose more genetic conditions on samples obtained through amniocentesis or chorionic villus sampling, including many disorders that cannot be screened for non-invasively. All of these options have benefits and limitations, and genetic counseling has become increasingly complex for providers who are responsible for guiding patients in their decisions about screening and testing before and during pregnancy.

KEYWORDS:

genetic abnormalities; pregnancy; prenatal screening; risk

PMID:
27853526
PMCID:
PMC5089140
DOI:
10.12688/f1000research.9215.1
[PubMed - in process]
Free PMC Article

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