The surplus embryos that have been frozen in the IVF cycle can be successfully transferred in a Frozen Embryo Transfer without having to undergo stimulation of the eggs or egg retrieval.
This is a very straightforward process. This service can be offered to a patient, who is having regular menstrual cycles. The embryo transfer is usually timed using a combination of ultrasound monitoring to confirm follicular monitoring and daily urinary LH hormone dipsticks to detect LH surge. The major advantage of this protocol is that no medications are given.
In this procedure, hormones are given to prepare the uterus for implantation. There are two protocols used:
Frozen Embryo transfer can be done even after several years of freezing as the embryos are suspended in age and time.
The success rate of a FET is early same as that of a fresh transfer and primarily depends on a woman’s age, quality and day of freezing of the embryos and the endometrial receptivity.