How many eggs on average are donated on an Egg Donation treatment at Instituto Bernabeu?

01 In Spain, we performed 40% of all egg donation cycles in Europe. The experience accumulated at Instituto Bernabeu for over 15 years, allows us to offer to our patients a high quality and personalized treatment.

When a patient decides to go for an Egg Donation treatment, a chain work is set in the organization, in which we guarantee a commitment of trust, reliability and professional quality.

Why an “x” number of eggs are donated? Why not only one?

We need to keep in mind that in the developing process of a fertility treatment, there are a number of facts subject to human biology itself.

To begin with, not all the eggs collected will be suitable to be fertilized. Only those ones that have achieved an adequate maturity will have that option. Not all the mature eggs will get fertilize and some others will have an abnormal fertilization so there will be discarded for a possible transfer.

The eggs fertilized with normalcy that is the generated embryos from the fertilization, will have a different pattern. Each embryo has its own destination. Some will get blocked during the observation period before the transfer, some others will survive until the transfer day but with bad or low quality, and only a few will have an adequate morphology and development to be selected for the embryo transfer. This is a completely normal development that happen in all assisted reproduction cycles both with own eggs and donated eggs.

Sometimes, patients understand the “loss” of embryos as a poor outcome. How these can happen if we had so many embryos and we ended up with just a few? The main reason is natural biological selection within the absolute normality.

At Instituto Bernabeu the egg donor is selected individually in each case, ensuring the maximum similarity with the recipient patient, and is treated in a safe and controlled manner to guarantee obtaining an adequate number of eggs, always under close medical supervision.

The average age of an egg donor in our clinic is 25 years old. After the ovarian stimulation we retrieve all the eggs possible. Currently our average number of donated eggs is 12 per cycle. The rate of mature eggs is 90%, this demonstrate the proper selection of egg donors and the correct enforcement of the ovarian stimulation patterns.

The fertilization rate, that is the number of embryos generated by the amount of eggs fertilized, is 75%. From this point onwards and as I explained above, each embryo will have a different development.02But not only is the number of eggs retrieved important, the quality is essential. This is determined primarily by the age of the woman, a comprehensive selection of the egg donor, the quality in the implementation of stimulation protocols and the fact that many egg donors have previous proven fertility. This allows performing the embryo transfer, in a high percentage of cases, the 5th day of embryonic life (for the most advanced embryonic development called blastocyst).

The entire set of facts can offer our patients the possibility of transferring a high number of quality embryos, in fact 60% of cycles quality embryos can be frozen (vitrified) with a cumulative pregnancy rate of 85% per cycle.

This is especially important in the group recipient patients to who, in many cases, by age or medical history or by choice is decided to transfer a single embryo to avoid the risk of twin pregnancy.

The quantity and quality of eggs donated per cycle at our center ensures the highest probability of normal to term pregnancy.

Dr. Lydia Luque, Gynecologist at Instituto Bernabeu.

To found out the next topics for our forum: follow us on facebook or twitter.

You can arrange an online consultation or book an appointment at Instituto Bernabeu.

More information on our website: www.institutobernabeu.com/en/ or www.ibbiotech.com

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Legality of egg donation in Spain: Anonymity and confidentiality

Ovocito-e1322819738144Reproduction treatments with donated eggs have gained significant importance in recent years.

It is worth noting the main characteristics that the Law 14/2006 on assisted human reproduction techniques states on egg donation, which are explained below: Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Why is fresh egg donation better than frozen?

ovulo congeladoOne of the most controversial questions for patients looking for egg donation is whether or not the eggs are fresh, and if this makes a difference.

With the use of cell vitrification during recent years, survival after thawing has improved greatly for sperm and embryos. However, the size of an egg (the largest cell in the human body) makes it more susceptible to thermal stress. Therefore the rate of survival is not as high, and it is possible that certain cellular structures suffer in the freeze-thaw process. Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Becoming a mother after 40

Nowadays, we all know that maternity is being postponed, currently standing at 31 years of age, according to the National Statistics Institute.

This basically means that the average woman has her first child at the age of 31. Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Partner Assisted Reproduction Technique, or the PAiR method

When a female homosexual couple decides to have a child through assisted reproduction techniques, there are several available options:

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Egg donation at Instituto Bernabeu

IFRAME Embed for Youtube

Since 1988, egg donation has been legally regulated in Spain. It is a well-controlled and anonymous process that can be carried out thanks to the solidarity of many people. We should bear in mind that Spain is the leading country in terms of organ donation, including egg donation and blood donation, which is quite common in our country. Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Blastocyst, advantages of a transfer on day 4 or 5

IFRAME Embed for Youtube

When we perform an assisted reproduction cycle, we try to optimise the results as much as possible. Currently, the most physiological way of achieving this is with an embryo culture that reaches the blastocyst stage. Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Egg donation explained simply

IFRAME Embed for Youtube

For 21 years, egg donation has been a treatment that Instituto Bernabeu offers to women who need it, which has made it a European reference point for egg donation.

It is the reproductive technique with the highest pregnancy rates, over 60% per cycle. At IB, the overall pregnancy rate after three cycles of treatment is over 90%. Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

No responses yet

Intentionally delaying motherhood: oocyte vitrification

IFRAME Embed for Youtube

Although egg cryopreservation was introduced more than 20 years ago, the results so far have been dispiriting, but in recent times there have been remarkable advances and improvements in the field of cryobiology which have made its acceptance as a routine technique possible.

Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

One response so far

Embryo transfer

Embryo transfer is the culmination of various assisted reproduction treatments: in-vitro fertilisation, egg donation, embryo adoption, use of cryopreserved embryos, and so on.

The embryo is transferred from the laboratory to its ultimate place of development, the mother’s uterus. Continue Reading »

Would you like to book an appointment?

 

Find out more about our services

One response so far