On the road to motherhood and paternity through assisted reproduction, one of the most important decisions is the evaluation of the genetic health of the embryos before implantation.
Preimplantation genetic testing (PGT) is a key process in this area, as it allows the identification of possible chromosomal abnormalities or hereditary diseases that could affect the development of the baby.
This technological advancement has given couples the ability to make more informed decisions, but it’s natural to wonder if and when it’s worth getting tested.
The answer to this question depends on several factors.
What is genetic testing on embryos?
Preimplantation genetic testing involves evaluating the DNA of embryos created through in vitro fertilization (IVF) before they are transferred to the uterus.
A few cells are removed from the embryo at an early stage (usually between days 3 and 5 of development) without compromising its viability. These cells are then analyzed in a specialized laboratory to detect specific chromosomal alterations or genetic mutations that could lead to serious diseases or implantation failures.
When is it advisable to perform genetic tests on embryos?
Preimplantation genetic testing is not necessary in 100% of cases, but is highly recommended in specific situations. For example:
- Couples with a history of genetic diseases: If there is a history of hereditary disorders in the family of one of the intended parents, the tests can prevent the transmission of conditions such as cystic fibrosis, muscular dystrophies, among others.
- Couples with recurrent miscarriages: Chromosomal abnormalities are one of the main causes of gestational loss. Assessing the genetic status of embryos can increase the chances of a successful pregnancy.
- Couples who have had previous IVF failures: If failed attempts at IVF have been made, PGT can help detect if the embryos did not implant due to genetic problems.
- Women over 35 years of age: As maternal age advances, the risk of chromosomal alterations such as Down syndrome increases. Genetic evaluation of the embryo helps ensure that one with the best possible genetic quality is transferred.
Benefits of performing genetic testing on embryos
- Improves IVF success rates: One of the biggest benefits of preimplantation genetic testing is the increased success rate in assisted reproduction treatments. By selecting genetically healthy embryos, the chances of achieving a viable pregnancy and having a healthy baby are increased.
- Genetic risk reduction: Testing can identify inherited diseases and serious genetic conditions that could be passed on to the baby. By being able to select embryos without such alterations, couples have the peace of mind of reducing the risk of diseases in their offspring.
- Reduction of miscarriages: By eliminating the possibility of transferring embryos with chromosomal alterations, the probability of gestational losses is reduced. This can be a great emotional relief for those who have faced several miscarriages in the past.
Is it worth making them?
In short, genetic testing on embryos can be worthwhile. Not only do these tests help increase IVF success rates, but they offer the possibility of having a healthy child and minimizing the risks associated with genetic diseases.
However, the decision to perform these tests should be made with a clear understanding of the benefits and limitations, and always accompanied by professional medical guidance.
Genetic testing on embryos represents an opportunity for couples to make IVF treatment safer and more effective, which can make the path to motherhood and parenthood much clearer and more hopeful. At Fertivida, we accompany you through every step of your treatment, offering you all the information and support you need to make the right decisions for you and your family. Genetic testing is a tool that can make the assisted fertilization process safer and more effective, giving you the confidence that you are in the best hands.
