[First birth after preimplantation genetic diagnosis performed on thawed embryos].

OBJECTIVE

To report the birth of the first infant conceived after preimplantation genetic diagnosis (PGD) performed on frozen-thawed embryos in our PGD center.

PATIENTS AND METHODS

Three couples (C1, C2 and C3) who had frozen embryos from a previous in vitro fertilization attempt were enrolled in our PGD program. Embryos were thawed one day before the biopsy procedure for the couples C1 and C3 and the day of the biopsy for the couple C2. The single cell genetic analysis was performed by a multiplex PCR for the couple C1 and by fluorescent in situ hybridization for the couples C2 and C3. The embryos transfers were carried out on the third or fourth day.

RESULTS

Out of ten thawed embryos, eight were biopsied and five were transferred during three embryos transfers. Two biochemical and one ongoing pregnancy were obtained yielded one birth.

CONCLUSIONS

PGD may be offered to couples at risk of transmission of a serious and incurable genetic disease and having frozen embryos.