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The clinical utility of DNA-based screening for fetal aneuploidy by primary obstetrical care providers in the general pregnancy population.

ABSTRACT: To assess the clinical utility of cell-free DNA (cfDNA)-based screening for aneuploidies offered through primary obstetrical care providers to a general pregnancy population.Patient educational materials were developed and validated and providers were trained. Serum was collected for reflexive testing of cfDNA failures. Providers and patients were surveyed concerning knowledge, decision making, and satisfaction. Pregnancy outcome was determined by active or passive ascertainment.Between September 2014 and July 2015, 72 providers screened 2,691 women. The five largest participating practices increased uptake by 8 to 40%. Among 2,681 reports, 16 women (0.6%) were screen-positive for trisomy 21, 18, or 13; all saw genetic professionals. Twelve were confirmed (positive predictive value (PPV), 75%; 95% CI, 48-93%) and four were false-positives (0.15%). Of 150 failures (5.6%), 79% had a negative serum or subsequent cfDNA test; no aneuploidies were identified. Of 100 women surveyed, 99 understood that testing was optional, 96 had their questions answered, and 95 received sufficient information. Pretest information was provided by the physician/certified nurse midwife (55) or office nurse/educator (40); none was provided by genetic professionals.This first clinical utility study of cfDNA screening found higher uptake rates, patient understanding of basic concepts, and easy incorporation into routine obstetrical practices. There were no reported cases of aneuploidy among cfDNA test failures.Genet Med advance online publication 12 January 2017.

SUBMITTER: Palomaki GE

PROVIDER: S-EPMC5532959 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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The clinical utility of DNA-based screening for fetal aneuploidy by primary obstetrical care providers in the general pregnancy population.

Palomaki Glenn E GE Kloza Edward M EM O'Brien Barbara M BM Eklund Elizabeth E EE Lambert-Messerlian Geralyn M GM

Genetics in medicine : official journal of the American College of Medical Genetics 20170112 7

<h4>Objective</h4>To assess the clinical utility of cell-free DNA (cfDNA)-based screening for aneuploidies offered through primary obstetrical care providers to a general pregnancy population.<h4>Methods</h4>Patient educational materials were developed and validated and providers were trained. Serum was collected for reflexive testing of cfDNA failures. Providers and patients were surveyed concerning knowledge, decision making, and satisfaction. Pregnancy outcome was determined by active or pass ...[more]

PMID: 28079901

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Dataset Information

The clinical utility of DNA-based screening for fetal aneuploidy by primary obstetrical care providers in the general pregnancy population.

Publications

The clinical utility of DNA-based screening for fetal aneuploidy by primary obstetrical care providers in the general pregnancy population.

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