Preimplantation Genetic Testing (PGT) can only be used in conjunction with in vitro fertilization (IVF). PGT gives patients the option to test embryos for abnormalities in chromosome copy number.
Because IVF allows examination of an embryo outside the womb, specialists can take a sample of cells for analysis. This allows genetics experts to identify embryos with chromosomal abnormalities.
PGT testing can:
- Improve IVF pregnancy rates
- Reduce multiples
- Reduce the risk of miscarriage
- Reduce the risk of chromosomal abnormalities such as Down syndrome
- Identify embryos carrying potentially harmful genetic diseases
PGT is not harmful to the embryos. The process includes these basic steps:
- Embryos are created as part of the IVF process
- A small sample of cells is biopsied from each embryo at the blastocyst stage
- The sample of cells is sent off to be analyzed for genetic or chromosomal abnormalities
- Results are communicated to the patient and informed decisions are made by the couple and the physician about which embryos to be used for the IVF transfer.