Merrion Fertility Clinic Success Rates

Our success rates mark MFC out as an outstanding performer in the provision of fertility services. We consistently rank well above the European average as published by the European Society for Human Reproduction & Embryology and HFEA in the UK.

We are delighted to report that our clinical pregnancy rate for IVF and ICSI treatments for the first 6 months in 2017 was an amazing 50% * per completed cycle of treatment. In couples where the female partner was 35 years of age or younger, the chance of conceiving with a fresh cycle of treatment was 65% * These success rates are significantly above internationally reported success rates.

Our overall twin pregnancy rate continues to decline at only 4.9% due to our carefully applied criteria regarding single embryo transfers (SETs).

* Due to miscarriage etc., live birth rates are lower, especially in older women – see graph below.

Graph update as per MW


Elective single embryo transfer (eSET) means that for a couple with at least 2 good quality embryos available, we recommend transferring one embryo and freezing any extra ones for future use. This is regarded as the safest way to practise IVF as it reduces multiple pregnancies (twins and triplets) which are high risk pregnancies.

We have recently compiled our success rates for couples who had an elective single embryo transfer in 2016 and the results are outstanding.

The cumulative pregnancy rate for this group after one fresh cycle plus one frozen cycle (if not pregnant after fresh) comes to a staggering 83.5% *.

At MFC, eSET is only recommended for couples with very good embryos but 40% of our couples fall into this category. In 2016, 83 (63.8%) of eSET couples conceived with their first initial cycle and all of them had at least one extra embryo frozen. Of the 47 couples who were initially unsuccessful, 40 proceeded to a frozen embryo transfer cycle and 19 (47%) of those have conceived. And most of these couples still have more embryos available for the future.

* At the time of calculating these success rates 7 couples who were unsuccessful in their fresh cycle, and had an embryo frozen, had not yet returned to use their frozen embryo. The pregnancy outcome of these 7 couples can either increase or decrease the overall eSet cumulative pregnancy rate.

** Due to miscarriage etc., live birth rates are lower, especially in older women – see graph below.



Live-birth rates or “take home baby rates” cannot be reported until all women have delivered. It is wonderful to report our Live-birth rates for 2016 which are exceptional by international standards.

Please click on the link below should you have any further queries or if you wish to book an appointment at Merrion Fertility Clinic.


IVF Cost: Contact Us


IVF Cost: Online Self Referral Form