Confirmation of diagnosis in preimplantation genetic diagnosis (PGD) through blastocyst culture: Preliminary experience

A. Veiga, Y. Gil, M. Boada, M. Carrera, F. Vidal, I. Boiso, Y. Ménézo, P. N. Barri

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    41 Citations (Scopus)

    Abstract

    Three cases of preimplantation genetic diagnosis (PGD) (two for sexing and one for aneuploidy screening) are presented. Embryo biopsy was performed at day 3 and diagnosis was established with fluorescent in situ hybridization (FISH). Embryos not used for replacement were cultured in sequential media for blastocyst development. Blastocyst rate was 39.3 per cent. Confirmations of diagnosis were established with FISH in blastocysts and arrested embryos. Mosaicism was observed in 7/8 blastocysts (mean number of cells analysed: 55.5) and 5/8 arrested embryos. The percentage of abnormal cells was 17.1 per cent for blastocysts and 54 per cent for arrested embryos. Polyploid cells were observed in 4/8 blastocysts. Confirmation of diagnosis at the blastocyst stage is a useful tool in PGD.
    Original languageEnglish
    Pages (from-to)1242-1247
    JournalPrenatal Diagnosis
    Volume19
    Issue number13
    DOIs
    Publication statusPublished - 1 Dec 1999

    Keywords

    • Blastocyst culture
    • Confirmations of diagnosis
    • PGD

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