Preimplantation genetic diagnosis to detect foetal abnormalities has a sensitivity of 85% and a false positive rate of 5%. What we must not forget, however, is that it also has a 1% risk of death for the foetus. It now seems that the tests performed by analysing the mother’s blood are more sensitive (around 99% for Down’s Syndrome), give fewer false positives (0.5%), and of course have no risk for the foetus (British Medical Journal 2014; 349: g 5830).
The new test for preimplantation genetic diagnosis would certainly be something positive if it were not for the fact that in many cases, if not most, these tests are used with a clear abortive purpose.
La entrada Preimplantation genetic diagnosis to detect foetal abnormalities. A new technique aparece primero en Observatorio de Bioética, UCV.
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