Preimplantation diagnosis can be offered to people with a family risk of transmitting a particularly serious genetic disease to their future child. Once the indication has been validated by a multidisciplinary prenatal diagnosis center (CPDPN), the PGD procedure consists in carrying out a genetic diagnosis of the genetic disease that could be transmitted on embryos obtained by in vitro fertilization. An embryo unaffected by the family disease is then re-implanted in the mother's uterus. This pre-implantation diagnosis is currently carried out by 5 authorized centers in France.
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