Pre-implantation genetic testing for aneuploidy (PGT-A) is a technique that allows detection of the chromosome endowment of embryos coming from an in vitro fertilization (IVF) cycle.
This test allows embryos with a normal chromosome load, that is, those with 46 chromosomes, to be selected for uterine transfer given that these embryos have the greatest potential for successful implantation.
Step-by-Step
How does it work?
1.
Ask your Reproduction Unit about this test.
2.
We carry out genetic counselling and get your informed consent for the test.
3.
An IVF cycle and embryo biopsy is carried out.
4.
The reproduction team will explain the results of the test to you and will plan the transfer of healthy embryos.
Who is it for?
When is it recommended?
In patients with a maternal age over 35 years.
Cases with repeated miscarriages.
In women with implantation failures.
Where there is a severe male factor (identification of altered sperm in a seminogram or FISH test).
This technique is performed to increase the rates of implantation, pregnancy and, ultimately, of being able to bring a healthy baby home.
PGT-A can help speed up the time required to get a positive pregnancy test result, compared to an IVF cycle performed without PGT-A.
This test can help reduce the effect of the age factor in women.
The identification of embryos without aneuploidies through PGT-A usually results in decreased miscarriage rates and may reduce the time and number of transfers required to get pregnant.
It is a fundamental tool for achieving the best results when applying a single embryo transfer (SET) strategy.
The efficacy of this test has been demonstrated for couples with a good prognosis and a high number of embryos.
PGT-A
Benefits
PGT-A
Results
This technique allows us to determine the chromosomal load of embryos created by IVF to identify which ones have a greater implantation potential.