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With this diagnosis we can detect chromosomal anomalies in the embryo. It consists of the genetic study of the embryos, to transfer only healthy embryos. The diagnosis is indicated in patients with chromosomal alterations and familiar precedents, avoiding this way the transmission of hereditary diseases. Also it's indicated when the age of the mother is raised (35 years or more), because the fetus has an higher probability of chromosomal anomalies, like Down's Syndrome.
The skill consists of extracting two embyo cells when this one has 8 cells, that is to say, without compromise the health embryo,on the third day after the fertilization. These extracted cells are studied in the laboratory by two technics: Fluorescence In Situ Hybridization (FISH) or Polimerase Chain Reaction (PCR).
At a few hours we obtain the result of the genetic condition of the embryos, and in this moment is realized the transfer of those who possess normal chromosomes.
