Prolonged culture to blastocyst stage

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Who is it for?

Note for all patients

All the embryos that we use in Ovoclinic are cultured to blastocyst stage. This allows us to be more precise in selecting the best quality embryos and increase the success rates of our treatments.

This means that embryos are grown to their 5th or 6th day of development, which is when the reach blastocyst stage.

Thanks to this strategy, we achieve increased success and better implantation rates then when cultivating embryos to day 3.

Note for all patients

All the embryos that we use in Ovoclinic are cultured to blastocyst stage. This allows us to be more precise in selecting the best quality embryos and increase the success rates of our treatments.

This means that embryos are grown to their 5th or 6th day of development, which is when the reach blastocyst stage.

Thanks to this strategy, we achieve increased success and better implantation rates then when cultivating embryos to day 3.

FAQ

Is blastocyst freezing as effective as day 3 embryos?

Vitrification, which is the freezing technique used, does not present significant differences with respect to survival with respect to day 3 embryos.

How is the quality of a blastocyst scored in the laboratory?

There are 3 main parameters for its classification: the expansion of the blastocele, which is a central cavity filled with liquid; the size and level of compaction of the internal cell mass, whose structure will give rise to the fetus; and the number of cells that make up the trophoectoderm and which will give rise to the placenta.