When we recommend preimplantation genetic testing (PGT-A), it is because, for various reasons, we feel that the morphology of the embryo alone is insufficient to confirm its quality. Therefore, in terms of selection, PGT-A becomes a very important tool. It allows us to discard many embryos that would have been transferred based solely on morphology.
Attending to the standard rates of normal embryos in different cases, such as when patients have translocations (which accounts for only 15% of the embryos studied), or patients over 42 years old (where only 10% of the embryos are likely to be genetically normal), PGT-A becomes an indispensable technique. It ensures that we are indeed transferring good embryos and thus improves the overall selection process.
