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Frozen Embryo Transfer (FET)
During an IVF/ICSI cycle, more embryos may have developed in the lab. Any good-quality supernumerary embryos are frozen in that case. If you fail to get pregnant after the first transfer or if you want another child later, the preserved embryos are used first for a subsequent transfer.
Treatment with (frozen and) thawed embryos is called an FET (Frozen Embryo Transfer).
The treatment is less stressful because it does not require hormonal ovarian stimulation or egg retrieval.
The chances of implantation of the thawed embryo are usually the same as during a fresh embryo transfer.
For Belgian patients who are entitled to reimbursement, these are additional attempts within the same treatment cycle. Since (a maximum of) six rounds of stimulation medication are reimbursed. So any additional embryos that have been frozen after oocyte retrieval are additional chances to get pregnant.
Difference between IVF and IVF-ICSI
In ‘conventional’ IVF, fertilisation occurs in the lab because the woman’s eggs are surrounded by the man’s sperm in a Petri dish. The strongest swimmer will fertilise the egg.
ICSI or intracytoplasmic sperm injection is another lab technique, whereby a single live sperm is injected directly into the centre of an egg by an expert. The next day, we can determine whether fertilisation has occurred.
When is ICSI applied?
ICSI is usually applied for prospective parents where the man has a fertility problem. If the man’s medical examination shows that his sperm does not contain an adequate number of sperm cells to give the conventional IVF technique a chance of success, ICSI is the logical choice. However, even if the dish method does not result in fertilisation, ICSI can be used for the next attempt, possibly on some of the eggs.
Make an appointment
The colleagues in our Contact Centre are happy to help you. Please contact + 32 (0)2 477 66 99.
They will ask you a few questions, after which they direct you to the right specialist.
Five common questions about IVF / ICSI answered:
What does fertility treatment with IVF or ICSI cost?
Is it OK to drink alcohol during treatment?
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