(+34) 951 419 212
If you are reading this article, you are probably trying to make a decision about whether to opt for fresh or frozen donor eggs to use in your egg donation treatment. Our aim is to give you more information about the use of frozen oocytes in IVF and to assure you that this fragile human reproductive cell can survive the freezing/thawing cycle very well, keeping all its characteristics and its reproductive quality.
What should I bear in mind when choosing where to get donor eggs?
The decision about how and where to get donor eggs is very important and personal. You can opt for a cycle with a fresh donor or for using frozen eggs from an egg bank. Both options have their strengths; for example, in Advantages of using vitrified eggs in egg donation treatment we highlighted the advantages of using vitrified eggs.
Once this important decision has been made, you can start looking for your donor and, if you have decided to use frozen eggs, choose your egg bank.
Ovobank is an international egg bank, based in Marbella, Spain, within the facilities of the fertility clinic Ovoclinic. Our team of doctors, embryologists and cryobiology specialists has more than 20 years of experience in assisted reproduction, and they are experts in freezing and preserving eggs.
We ship to more than 480 clinics all over the world the vitrified oocytes they need for their IVF treatments with donor eggs. When we work with an assisted reproduction clinic, we do not simply send our donor eggs; we also offer them support and training to help them obtain the best results for their patients, the future parents who want to bring a baby home.
What are the chances of a successful pregnancy when frozen eggs are used?
The success rates of treatments with Ovobank’s frozen eggs, following its specific protocols, have resulted in above-average rates:
- 81% positive beta-hCG in fresh embryo transfers
- 79% positive beta-hCG in frozen embryo transfers
- 74% of fresh embryo transfers resulting in pregnancy
- 61% pregnancy rate in frozen embryo transfers
At Ovobank, our donors have to pass a series of exhaustive medical, psychological, gynecological and genetic tests to guarantee their good health and the quality of their eggs. They then undergo personalized ovarian stimulation, adapted to their needs, looking after them at all times. Once the eggs have been retrieved, the mature oocytes at the required stage of development are frozen by vitrification and stored in liquid nitrogen at -196 °C until they are needed.
Once the stages of selection, donor stimulation and egg freezing have been carried out, we can store lots of frozen eggs until the moment the clinic or patients need them. In fact, we have hundreds of lots of vitrified eggs, from hundreds of diverse donors, so that you can find your donor without waiting.
What are the most common survival rates of frozen oocytes after thawing?
When the donor eggs arrive at your fertility center, they will be stored in the nitrogen tanks of your fertility clinic’s laboratory, so that the cold chain is never broken. There they will be kept until the day of fertilization arrives. We have a great deal of information about thawing protocols, available to all partner centers, to increase the survival rates of these reproductive cells during the thawing process. In fact, we regularly observe survival rates above 95%. We are confident about the quality and survival rates of our donor eggs and we offer the following oocyte survival guarantee:
- Mini lot (3 oocytes). If the survival rate is below 50%, we will send you a free mini lot.
- Lot (6 oocytes). If fewer than 50% of the cells survive thawing, we will send a free mini lot or a Lot at half price.
Guarantee conditions may vary by country: please check them with your clinic or with Ovobank.
If you would like more information or to talk about it with one of our coordinators, you can send us an email at info@ovobank.com or get in touch with us through our website: https://ovobank.com/contact-us/. We are looking forward to helping you build your family.