The future of prenatal diagnosis: rapid testing or full karyotype? An audit of chromosome abnormalities and pregnancy outcomes for women referred for Down's Syndrome testing

Abstract excerpt

OBJECTIVE: To assess the implications of a change in prenatal diagnosis policy from full karyotype analysis to rapid trisomy testing for women referred primarily for increased risk of Down's Syndrome. DESIGN: Retrospective collection and review of data. SETTING: The four London Regional Genetics Centres. POPULATION: Pregnant women (32,674) in the London area having invasive prenatal diagnosis during a six-year...

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