Preimplantation Genetic Test (PGT)

Preimplantation genetic test is performed to avoid the transfer of embryos with any pathology.

Our specialists have the most experience in the country in pre-implantation genetic testing in embryos with only 5 days of In Vitro development, allowing to keep intact the embryo's chances of implantation and birth.

Preimplantation genetic testing or PGT detects some genetic abnormalities and supports:

  • Women over 39 years of age who are looking to have a baby through In Vitro Fertilization, since it has been demonstrated that, after this age, the quality of the eggs decreases drastically, generating embryos with a high probability of having a chromosomal abnormality.
  • Women with at least 2 previous assisted reproduction treatments without achieving pregnancy.
  • Women with 2 or more spontaneous gestational losses (miscarriages).
  • Individuals at high risk of transmitting a genetic disease to their children.

 

The procedure

 

It consists of a pre-implantation genetic test combined with In Vitro Fertilization (IVF) treatment.

These embryos are analyzed in the laboratory to ensure that they are free of chromosomal or genetic problems and to determine the sex of each embryo. Finally, only those healthy embryos are transferred.

 

About the technique:

 

  • Higher chances of pregnancy in fewer attempts.
  • Lower risk of miscarriage.
  • Detection of more than 100 hereditary genetic diseases.

FAQ

No, like any other procedure, it has indications and contraindications and must be considered within the context of the patient's history.

 

The PGT test identifies chromosomally abnormal embryos with almost 100% accuracy. However, the rate of false positives (normal embryos misdiagnosed as abnormal) is unknown. According to some publications, it can go as high as 30% and varies between different testing labs.

Not necessarily, the cause of the miscarriage can be traumatic. A point to keep in mind is that in younger patients typically only about half of all miscarriages are due to chromosomal errors in the embryos. On the other hand, patients of advanced reproductive age may simply not have enough embryos to justify extensive embryo cultivation and embryo biopsy. 

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