PGT-A, or Preimplantation Genetic Testing for Aneuploidies, is a genetic test performed on the embryos produced through IVF.
It examines the chromosome material of an embryo and can tell if the appropriate number of chromosomes are present. This will help physicians select the best embryo for transfer and improve the chances of achieving a successful pregnancy.
Embryos whose cells have the correct number of chromosomes are called euploid.
Embryos whose cells have extra or missing chromosomes or pieces of chromosomes are called aneuploid. Aneuploid embryos are significantly more likely to fail to implant, result in miscarriage, or lead to the birth of a child with a genetic disease, while euploid embryos are much more likely to lead to a healthy pregnancy.
Benefits of PGT-A
Increases chances of pregnancy.
Decreases miscarriage rates.
Increases the chance that a healthy baby is born.
Reduces number of IVF cycles needed to achieve pregnancy, potentially reducing the time and costs of extra cycles.
Enables confident single embryo transfer, avoiding health complications associated with twin or triplet pregnancies.