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La In Vitro Fertilization (IVF) It is a treatment of Assisted reproduction which consists of joining the ovules with the sperm in the laboratory, and transferring the selected embryo to the maternal uterus to achieve its implantation and achieve pregnancy.

During the treatment, we hormonally stimulate the woman's ovaries, we extract the eggs in a procedure that lasts between 20 and 30 minutes, we fertilize them in vitro in the laboratory, we keep them for a few days in incubators and transfer one or two of the embryos to the maternal uterus, in a process that lasts about 25 to 30 days.

Unused embryos are cryopreserved by vitrification so that they can be transferred in a later cycle or when in the future they want to be used to achieve a new pregnancy.

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    Dr. Carla Castell
    Fertility Unit

    When is In Vitro Fertilization recommended

    The objective of the fertility treatments is to achieve pregnancy both when female and / or male fertility problems are detected, as in some cases of women who have decided to live motherhood individually or in pairs of women.

    IVF may be recommended in:

    • Couples with sterility of unknown origin.
    • Couples who have not been successful with previous fertility treatments.
    • Couples in which the man has alterations in the quantity and / or quality of sperm.
    • Couples in which a preimplantation genetic study is required.
    • Women with poor quality eggs.
    • Women with endometriosis.
    • Women who want to experience motherhood individually.
    • Maternity in pairs of women.

    La In vitro fertilization It can be carried out with your own eggs and sperm from the partner or donor, and with donor eggs and sperm from the partner or donor.

    In vitro fertilization (IVF) Laboratory. Microscope image

    Phases of In Vitro Fertilization (IVF)

    Fertility treatment begins with a first visit in which, attended by our Assisted Reproduction specialist, we collect all the antecedents, we request the necessary complementary tests to indicate the most appropriate treatment and, on many occasions, we can already guide the patient about the treatment to be carried out.

    Once we have all the results, we make a second visit in which we specify the treatment that we are going to start, we explain in great detail the process of the indicated reproduction treatment and we organize the calendar.

    The phases of the In Vitro Fertilization (IVF) treatment, during which the patient is accompanied at all times by her trusted doctor, are the following:

    • Phase 1: Ovarian stimulation 
    • Phase 2 Obtaining the oocytes
    • Phase 3: Insemination of the selected eggs
    • Phase 4: Transfer of the selected embryo
    • Cryopreservation (preservation of unused embryos)
    • Pregnancy test

    Phase 1: Ovarian stimulation

    The stimulation of the ovaries consists of carrying out a hormonal treatment with the aim of obtaining several good quality oocytes, instead of one as it happens every month naturally.

    Phase 2: Obtaining the oocytes

    In the operating room, we obtain the oocytes using a very fine needle guided by transvaginal ultrasound. To avoid discomfort, the procedure, which lasts between 20 and 30 minutes, is performed under sedation.

    After a short period of rest, the patient can return home and, the next day, continue with her usual life.

    Phase 3: Insemination of the selected eggs

    After 4 to 6 hours, in the laboratory we proceed to the insemination of the selected eggs with sperm from the partner or donor sperm.

    For between 3 and 5 days, the embryos remain in a time-lapse incubator, an incubation system that allows the evolution of the embryos to be controlled on a monitor and in real time, without the need to remove them from the incubator to observe them under a microscope, thus we avoid changes in light or temperature.

    Phase 4: Transfer of the selected embryo

    Embryo transfer is a painless process that consists of transferring the selected embryo to the mother's uterus vaginally. It is performed in the operating room, lasts a few minutes and does not require sedation.

    Cryopreservation

    Whether or not pregnancy is achieved on the first attempt, unused embryos are cryopreserved so that they can be transferred in a subsequent reproduction cycle or, in the future, be used for a new pregnancy.

    Pregnancy test

    Two weeks after the transfer, we perform a test to find out if the pregnancy has been achieved and the IVF treatment has been successful.

    Photo of BARBARA RIBEIRO in Pexels. Microscope image of Pexels.

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