Preimplantation Genetic Testing (PGT)

At RMA, we know that preimplantation genetic testing (PGT) can give hopeful parents peace of mind on a variety of genetic issues. When paired with In Vitro Fertilization (IVF), it helps your care team increase the chance for a healthy, successful pregnancy.

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What are the different types of PGT?



Preimplantation genetic testing for aneuploidy

PGT-A is offered to all IVF patients and looks for extra or missing chromosomes in an embryo. RMA uses the most advanced PGT-A platform available. Validated over several years and rigorous clinical trials, it can detect chromosome abnormalities with more precision than many other platforms. As 50-70% of miscarriages have been shown to be due to chromosome imbalances in an embryo, using PGT-A can substantially reduce these risks.


Preimplantation genetic testing for monogenic/single gene defects

PGT-M is a test available for any patient or couple at risk to have a child with a condition caused by a single gene. Examples include cystic fibrosis, hereditary cancer predispositions or neurofibromatosis. A unique test is developed for every family based on their genetic makeup. RMA works closely with the PGT-M lab to make sure the testing is set up as soon as possible and families have the most accurate results possible.

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genetic testing pgt-a


Preimplantation genetic testing for structural chromosomal rearrangements

The last type, PGT-SR, is an option for couples where one partner has a chromosome rearrangement such as a translocation or inversion. This testing looks for any unbalanced forms of these rearrangements, reducing the chance for a miscarriage and the chance to have a child with a chromosome abnormality.

Embryo Biopsy

No matter what type of PGT is done, an embryo biopsy is needed. An embryo biopsy takes place about 5 or 6 days after fertilization of the egg. It involves gently removing about five cells from a part of the embryo that will go on to make the placenta. Embryo biopsy has been shown to be a safe procedure that does not harm the embryo or the baby that develops from it.

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A Research Study

Women who have three chromosomally-normal embryos as a result of In Vitro Fertilization (IVF) have a 94.9% chance of achieving pregnancy, new research conducted by Reproductive Medicine Associates (RMA) and presented at the annual meeting of the American Society for Reproductive Medicine (ASRM) shows.

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