Recent research has shown that freezing embroys for IVF transfer will not actually increase the success rate.
It has been thought previously that freezing embryos and then using them a few weeks later will be more successful in IVF treatment. The "freeze-all" process is growing in popularity and about a quarter of all IVF treatments use the frozen embryos. During an IVF treatment, women begin by taking medication that is supposed to help their ovaries to produce eggs. The eggs are then collected and fertilized with sperm in a dish. The embryos are then allowed to grow for a couple of days. One or two of the embryos are then implanted into the woman. All of the leftover embryos are then frozen.
However, recently, IVF treatment centers are now recommending women to not implant any of the embryos right away. They are encouraging them to freeze all of the fertilized embryos and wait for a few weeks. The thought process of this is that frozen embryos have a better chance of being successful, because if an embryo is transferred straight away, the lining of the uterus may be less receptive due to the medicines women take to produce multiple eggs.
No research or specific studies backed up this theory though. Research studies have been created to help learn about whether or not frozen embryos are actually more successful in IVF treatments. Now a trial has put this idea to the test by randomizing 460 women at clinics in Denmark, Sweden, and Spain to either the freeze-all approach or the standard method of transferring one unfrozen embryo straight away. The freezing method had a 26 percent pregnancy rate compared with 29 percent for the standard method. Although this may seem like a very small difference, women want the best chances they can possibly have when it comes to becoming pregnant.
Experts are now saying that women should be implanted right away. Women who are going through IVF treatment want to get pregnant immediately and so doing IVF the standard way would mean that there is no delay. Plus, according to the new recent studies, there is no benefit in freezing embryos, and might even lower her chances of having a successful round.
The only women who should wait are the women who are at higher risk of the side-effect of IVF which is called hyperstimulation syndrome, which can lead to blood clots. If women are at a higher risk for hyperstimulation syndrome it is the best for them to wait an extra two months to allow the hormone levels to return to normal.
If you are going through IVF treatments and your doctor suggests that you go through the "freeze-all" method then it is best to talk to them and ask if there is a chance that you could be implanted right away without having to freeze your embryos. Considering that freezing might give you a slightly smaller chance of a successful transfer.