Embryo Transfer
IVF procedure will take you through different steps. In vitro fertilization involves three essential components. It begins with induction of ovulation and subsequently fertilization of the oocyte with sperm. Finally, development of embryos is a crucial step followed by transfer into the uterus.
What is single embryo transfer?
Single embryo transfer is a procedure in which one best embryo, is placed in the uterus. The embryo selected for transfer might be a cryopreserved embryos (frozen)) or from the current fresh IVF cycle. The remaining embryos may be set aside for future use or cryopreservation.
How long after embryo transfer does implantation occur?
IVF/ET involves four main steps:
- Retrieval of mature ova
- Fertilization of these mature ova in vitro
- Culture of preimplantation embryos and
- Embryo replacement within the uterus
To achieve a successful implantation, simultaneous development of blastocyst and the endometrium is essential. In Frozen embryo transfer the timing of blastocyst warming with endometrium is important.
In a frozen embryo transfer cycle timing in a natural cycle is taken into consideration. Warming and transfer of a day 5 blastocyst is timed to 5 days after suspected ovulation. Even so, the optimal day of transfer in FET is not fixed.