If you have experienced a failed IVF cycle or want to build your family further you may consider doing a FET cycle using unused frozen embryos.
During a typical IVF cycle, more than one embryo is created but not all embryos are transferred to the female partner’s body. The remaining unused embryos are frozen for future use. In case you do not achieve pregnancy in the first IVF cycle, these frozen embryos are used. This is known as Frozen Embryo Transfer. This ensures that you won’t have to undergo hormone stimulation and egg retrieval for the second time.
The benefits of FET include comparatively lower cost and less complex treatment as it involves no hyper stimulation and surgical retrieval of eggs again. The success rates are similar to that of using fresh embryos. The primary indicator for success is the maternal age at the time of embryo freezing. Women 37 years and younger experience success rates of 50% and above per thaw. This rate declines with increase in maternal age. Frozen embryos may remain frozen for up to 10 years though the decisive factor for survival rate is the quality of the embryos and freezing method used.
Embryos may be frozen from Day2 to Day 5. They are frozen using Vitrification which ensures improved survival rates as there is no formation of ice crystals. The endometrium of the uterus is made ready for implantation by administering medications. When the endometrium has thickened, a frozen embryo transfer date is confirmed and the procedure is carried out. Estrogen and progesterone medications are continued for another two weeks until pregnancy tests are carried out. If you have any doubts regarding the procedure contact one of our specialists for further details.