In the field of Assisted Reproduction, the process of In Vitro Fertilization (IVF) is an egg fertilized with sperm, leading
to the formation of the embryo, which
after 5 days of fertilized
embryos the best are
chosen to be transferred the uterus of the mother.
For Dr. Roly Hilario specialist in Human Reproduction of Fertility Clinic PROCREAR, there are previous steps before fertilization and embryo transfer, "from the aspiration of ova in the patient, on average should withdraw 5 eggs, to be fertilized with the sperm of the couple; to have at least two suitable embryos to be transferred, that because during embryonic development many stop in their growth due to chromosomal and genetic problems.
"After obtaining the fittest embryos, they are passed to transfer to the uterus of the patient,
which one of them at least will be implanted in the endometrium (in perfect condition), for its
development, "the cases are
varied, you can implement both
embryos to term (twins),
can also be one
of the implanted embryos development
fails, or one of
them gets to be implanted in the worst case not
implant embryos either” Hilario says.
But this does not end here; it
should be an evolutionary track of the embryo by ultrasound to determine if there are infections or other gynecological
or genetic abnormalities that cause abortions or
premature births.
As with a natural pregnancy where the fittest sperm
manages to fertilize the egg, it can be said that the
same applies to the formation of
the embryo, the more capable
will survive to form a new being, who will be
born in good condition.
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