Doble donación

Double donation

Do you know what is the double donation?

The double donation technique provides the couple with egg and sperm from donors.

Cefer helps you in coming true your dream of becoming mother. For this reason, we apply the most advanced techniques, as the double donation, with high rate of successful results.

This technique consists of fertilising donated eggs with anonymous donated sperm.

It is the perfect solution for women suffering from ovarian factor, or couples with both sterile members.

In order to get the more suitable donors, we base our studies on physical features and we perform all tests required by law, besides those we undergo by ourselves to obtain the best results. Moreover, you can decide whether the new genetic test Compatibility Plus 250 will be tested on both donors with the aim of reduce the possibilities of suffering from one of the 250 tested genetic disorders. We do our best for a healthy baby.

The woman's uterus must be able to have a pregnancy.

All our donors are young, university students who should pass every one of our rigorous tests and those required by law.

Then the donor has to come to our centre in order to receive correctly the best medication: recombinant hormones. This treatment has the best results on egg donation. As you only deserve the best, we will give it to you.
Double donation

Steps of the double donation

a) Ovarian stimulation
The ovaries are stimulated to produce more mature eggs. The treatment can be received in your home, because it can be self-administered. Simultaneously we undergo some tests, as ultrasound scanning or estradiol blood tests, in order to know how the woman responds to the treatment, so we can decide how to go on with the procedure until the day of the retrieval.

b) Oocyte retrieval or follicular puncture
This method involves the puncture and aspiration of ovarian follicles, where ovaries are located. The process lasts 5-10 minutes. We check it via ultrasound guidance and local sedation is needed.

c) Oocyte identification
After the retrieval, Cefer biologists examine through a microscope the follicular fluids in order to identify the eggs and know if they are mature. If ICSI technique is applied, the egg pellucid zone -or the cells from its "shell"- will be removed.

d) Sperm preparation
The healthy sperm will be separated from the remains. If IVF technique is applied, the sperm is placed with the eggs in a cell-culture dish. As regards ICSI technique, a spermatozoon is inserted inside the mature egg. In some cases, we can recommend IMSI procedure, besides ICSI one. IMSI involves a major, accurate sperm selection for egg fertilisation, because we use a more powerful microscope (with 16.000 magnifications facing the 400 magnifications of ICSI). We can see if there are any vacuoles inside the spermatozoon nucleus, which are related to DNA abnormalities.

*IMSI technique is only available for the moment at Cefer Barcelona.

e) Oocyte observation
After 16-20 hours, we undergo one more test through the microscope. If there are two circles (pronucleus), it means the oocyte is fertilised. We will inform you as soon as we know it!

f) Embryo monitoring
Every day Cefer embryologists take out the cell-culture dishes with the embryos and check their development one by one. This monitoring gives us some valuable information about which embryos are more likely to be successful.

We have a highly advanced system of embryo incubator, EmbryoScope, with a new image acquisition system. This allows the embryo's development to be traced first hand without taking it out the incubator, so we can collect more information for an early detection of embryo morphological abnormalities, which cannot be identified through traditional methods. Moreover, EmbryoScope improves the selection criteria of the highest potential embryos for pregnancy.

Thanks to the excellent conditions (constant temperature, humidity and environment) within EmbryoScope, the embryo incubation is more stable, which increases embryo viability. With respect to pregnancy, miscarriage rates will be reduced by half.

*EmbryoScope is only available for the moment at Cefer Barcelona.

g) Embryo transfer to the uterus
Embryo transfer is painless, which means that sedation is not required. Ultrasound guidance will be used in order to ensure the correct placement of the embryos.

Ask our experts for further information about the double donation process.

Avoid risks for your baby

Recent scientific studies have shown that the risk of genetic disorder is higher than previously thought, even when there are not prior cases in the family history.

The new genetic tests have transformed the assisted reproduction field. They make possible now to research on many diseases at the same cost that we have been paying before for just studying one.

With a single DNA test from a blood sample, the Cefer Reproductive Institute reduces the risk of having a child afflicted with one of the 250 genetic disorders.

The advantages of the genetic tests (Recombine, Genetic or Compatibility) are:

They give us more information than current diagnostic tests. For example, the traditional test on cystic fibrosis (value at 330€) studies 34 possible genetic mutations, but thanks to Compatibility 250* test, we can study 140 gene mutations (+400%).

Therefore, we can research on many diseases at the same cost of a small number of former investigations. Thanks to Compatibility plus 250, we test the donors' DNA for more than 250 genetic diseases. You will have the healthy family you deserve. With a genetic test, the cost of disease research does not exceed 4€.

Among the studied diseases, there are some high impact ones, as cystic fibrosis, fragile X syndrome, spinal muscular atrophy, sickle-cell disease, alpha and beta thalassemia and Tay-Sachs disease.

Cefer Reproductive Institute will continue to add new methods and techniques with the aim of helping our patients in a better way. Our major advances are for you and for your healthy family.

*Also known as Carrier Map.

What else can we do for you?

Psychological support service

As psychology is an important factor for a successful treatment and for your comfort, you will have at your disposal the assistance of a professional psychologist. You will be provided with recommendations and advices in order to manage better your feelings when you do not receive the usual support due to the hormones side effects, nerves for the process, or a poor communication with your loved ones. A psychologist expert on assisted reproduction will guide you during all the process.

 

If you want to get further information about our sperm bank service, please visit our sperm bank section.
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