Extended Embryo Development
CT Fertility offers blastocyst transfer, which is a new technique developed to maximize pregnancy rates while minimizing the risk of a multiple births.
Typically, an IVF laboratory grows embryos for about three days. However, with blastocyst transfer, a laboratory would grow embryos for five days. After five days of growth, the cells of the embryo should have divided many times over, and have begun to differentiate by function. The embryos (called blastocysts) that survive to this stage of development are usually strong and healthy.
This "extended culture" is made possible by using different cultures, each one designed to meet the requirements specific to each stage of growth.
Blastocyst culture and transfer allows clinicians to determine, with greater certainty, which two or three embryos are the best ones to transfer back to the mother, for the most likely potential for implantation. Doing this reduces the occurrence of potentially risky multiple births.
To the right, pictures of blastocyst development over 5 days. To learn more, click here.