Each of the stages of in vitro fertilisation can be marked by failures known as "setbacks". At each of the stages below, your doctor or the team may decide that the optimum conditions have not been met for moving on to the next stage.
IVF failures during ovarian stimulation
As ovarian stimulation is stage 1 of IVF, this is where the first setbacks can occur. These failures can be the result of several factors:
Your doctor will inform you via Wistim of the day-to-day monitoring of these treatments and the results of your tests, as well as the next stage in your care.
Once you have decided on the optimum moment for maturation, you will need to give an injection of hCG (OVITRELLE®) or Decapeptyl®, which will trigger the final stage of oocyte maturation.
This injection must be given at an extremely precise date and time to allow the subsequent stages to proceed smoothly.
After the ovarian stimulation stage, there are still risks of IVF accidents.
IVF failures during fertilisation and embryo culture
Unfortunately for couples, accidents can happen right up to the end of IVF.
Delayed embryo transfer :
The transfer may be delayed (by a few weeks) if there is a risk of hyperstimulation, or if the thickness of the endometrium is inadequate.
In this case, the embryos will be frozen and only the embryo transfer stage will be carried out at a later date.
A deferred transfer can also be decided in advance by your doctor to optimise your care.
Dr. Soizic Le Parco, Fertility and medically assisted procreation centre,
The Institut Mutualiste Montsouris