In the past, eggs have been more difficult to successfully freeze than sperm which is why egg donation has generally involved fresh egg donation in synchronised cycles. We freeze with a process called vitrification that allows eggs to be frozen and thawed successfully without being damaged. This method freezes eggs instantly at -196⁰C using liquid nitrogen and is so effective that an estimated 85% of eggs survive the freeze-thaw process.
Thousands of babies have now been born worldwide from treatment using previously-frozen eggs, and we are using this technology to offer frozen donor eggs from our bank for immediate treatment without the need to synchronise cycles with an egg donor.
As this is a relatively new technology, there are no up to date national statistics available showing pregnancy rates, but the use of frozen eggs is well established at CARE Fertility, and our own clinical pregnancy rate in 2019 was 48%. This compares favourably with our clinical pregnancy rate using ‘fresh’ donor eggs, which was 47% over the same period.
At CARE Fertility, we believe that our ability to manage every aspect of donor recruitment, screening and egg-freezing gives our patients an advantage in comparison to other clinics where the only option may be to use frozen eggs imported from international overseas egg banks. We can maintain excellent quality control by freezing and thawing eggs in laboratories across CARE Fertility using identical procedures. This is important because thawing success is dependent on the freezing and thawing methods in different laboratories being fully compatible.
Frozen eggs can only be fertilised by intracytoplasmic sperm injection (ICSI): where a single sperm is directly injected into an egg, so all our treatments using frozen eggs use ICSI. ICSI is used regularly for IVF treatment and if you are considering using frozen donor eggs we recommend that you read our information leaflet on ICSI.
The national average success rate for women who use their own frozen eggs during IVF is 18%. This goes up to 30% when they use frozen donor eggs.
Our own rates are slightly higher. In 2019, we achieved success rates of 48% when using frozen eggs during IVF.
As one of Europe's most successful providers of egg donation treatment, we truly understand our patient's needs and we care about your future family. We are completely aware of what donation means to you and we designed our egg banking and donation programme with you in mind. You'll receive the very best care and comprehensive personalised treatment plans together with choice and flexibility in your treatment.
“Nothing is impossible, and with the right people with you, the dream of becoming parents is achievable.”
We have included all our donors in our CARE Fertility egg donation database. Each donor has a profile to help you locate your ideal donor. Once you have found a donor you would like to use, we will contact you to discuss next steps.
Our experience and knowledge of egg donation means that we will be able to answer any questions you may have and take you step-by-step through the process.
If you’re considering egg donation, or using frozen eggs during your IVF treatment, our fertility specialists would be happy to talk you through the process.
Book a consultation today for confidential chat about how we do egg donation, and how we could help with your fertility treatment.