At Aria, we understand how important success rates are to you. However, it is key to note that these vary depending on the individual circumstances and comparison between clinics can be complex due to differences in reporting methods and patient populations.
At Aria, we understand how important success rates are to you. However, it is key to note that these vary depending on the individual circumstances and comparison between clinics can be complex due to differences in reporting methods and patient populations.
Results are influenced by various factors, but clinics present data based on the age of the embryo at the time of creation as patient age continues to be the main driver for success. In assisted reproductive treatment, the goal is to create viable embryos for subsequent successful transfer back into the uterus.
Embryo transfers can take place in a fresh cycle (some days after egg retrieval) or in a frozen cycle (independent from the egg retrieval event). Also, embryos can be transferred at different days of development. Overall, over 95% of our patients had an embryo transfer at the blastocyst stage between 2021 and 2022. If deemed appropriate, an embryo transfer at an earlier stage will be discussed with you.
We usually plan to transfer a single embryo and in 2021-2022, 80% of the transfers followed this strategy. The greatest risk to babies born as a result of fertility treatment is prematurity associated with multiple pregnancies. At Aria, patients receive individualised advice about the recommended number of embryos to transfer based on the quality of their embryos, risk of multiple pregnancy and their personal wishes. Our current multiple birth rate per embryo transferred is 1%.
The data presented below refers to treatments completed between 2021 and 2022. Success rates can be presented in different ways, so it is important to understand what each measure refers to for direct comparison:
Clinical pregnancy per embryo transfer: number of pregnancies confirmed after an ultrasound (where the heartbeat can be observed) divided by the number of embryo transfer events.
Live birth per embryo transfer: number of births divided by the number of embryo transfer events.
Live birth per embryo transferred: number of births divided by the number of embryos transferred. In line with HFEA recommendations, we present births per embryo transferred as it promotes embryo transfer practices that minimise the chances of twins, which carry health risks for the babies and the mother.
However, this measure does not incorporate the outcomes of patients who do not reach embryo transfer stage.
The HFEA makes available the results of every licensed clinic in the UK. In 2021, the way clinics were reporting their data to the HFEA changed. This meant that, as a new clinic then, Aria does not have HFEA-verified results on their website, however you can find national data collected by the HFEA. The individual results of a clinic are of limited value in comparing centres and choosing a fertility clinic. The HFEA provides helpful information to guide patients searching for a fertility clinic that is right for them – follow this link to learn more.
Call us on +44 (0) 203 263 6025 or email us at admin@ariafertility.co.uk to discuss our results in more detail.
Mon – Fri: 9am – 5pm
8 Welbeck Way London W1G 9YL
