New prenatal screening tests: their reliability is confirmed…

Publié le : 14 June 2013

 A new study published in the journal Ultrasound in Obstetrics & Gynecology "confirms the reliability and the sensitivity of non-invasive tests simply using the mother’s blood."  The British study covered a cohort of 1,005 pregnancies and "consisted of analysing in the 10th week of pregnancy the foetal cells present [in the maternal blood]." In comparison with the classic method of screening for trisomy 21, as well as trisomy 13 and 18, a method that requires an amniocentesis to confirm or annul the diagnosis, the new test "shows greater screening sensitivity": the rate of false positives is only 0.1% for the new method compared to 3.4% for the current process. 

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