Selective Enrichment of Genomic Loci for the Noninvasive Detection of Fetal Aneuploidies [285]

These results show that MPSS and TMPS perform similarly in terms of clinical sensitivity and specificity for the detection of fetal T31, T18, T13 and sex chromosome aneuploidy (SCA). However, no study compared the two approaches head-to-head in the same cohort of patients. The accuracy of gNIPT as a prenatal screening test has been mainly evaluated as a second-tier screening test to identify pregnancies at very low risk of fetal aneuploidies (T21, T18 and T13), thus avoiding invasive procedures. Genomics-based non-invasive prenatal testing methods appear to be sensitive and highly specific for detection of fetal trisomies 21, 18 and 13 in high-risk populations. There is paucity of data on the accuracy of gNIPT as a first-tier aneuploidy screening test in a population of unselected pregnant women. With respect to the replacement of invasive tests, the performance of gNIPT observed in this review is not sufficient to replace current invasive diagnostic tests.We conclude that given the current data on the performance of gNIPT, invasive fetal karyotyping is still the required diagnostic approach to confirm the presence of a chromosomal abnormality prior to making irreversible decisions relative to the pregnancy outcome. However, most of the gNIPT studies were prone to bias, especially in terms of the selection of participants.

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Genomics-based non-invasive prenatal testing for detection of fetal chromosomal aneuploidy in pregnant women

Badeau

Lindsay

Blais

et al. 2017

Cochrane Database of Systematic Reviews

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Selective Enrichment of Genomic Loci for the Noninvasive Detection of Fetal Aneuploidies [285]

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Genomics-based non-invasive prenatal testing for detection of fetal chromosomal aneuploidy in pregnant women

Genomics-based non-invasive prenatal testing for detection of fetal chromosomal aneuploidy in pregnant women

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