Defining Single Embryo Transfers
After undergoing egg retrieval, the eggs are fertilized with the sperm
in a lab. Once the resulting embryos develop, they can then be transferred
into the woman’s uterus for implantation. Though there may be several
embryos created as a result of the IVF process, in the case of single
embryo transfer (SET),
only one embryo is transferred. This eliminates the possibility of having multiple births.
Understanding the Risks of Multiple Births
Many women can carry multiples to term safely and give birth to healthy
children. However, it’s important to realize that there is an increased
risk of pregnancy and delivery complications with multiple births. Some
challenges include the higher risk of premature births, low birth weights,
and increased risk of delivery requiring a cesarean section. To reduce
reproductive medicine specialists may recommend that patients transfer a single embryo.
Identifying Appropriate Candidates for SET
Despite the advantages of SET, it may not be appropriate for every reproductive
medicine patient. Clinics set criteria for recommending SET based on factors
such as maternal age, embryo quality, the number of embryos available
to transfer, and the patient’s fertility history. In some cases,
it may be beneficial to transfer more than one embryo. Such a decision
will be made mutually between the patient and Fertility Specialist once
all the risks are reviewed and discussed.
Assessing the Embryos before Transfer
To give patient’s the best chance at getting pregnant, the reproductive
medicine specialist will work with the embryology team to evaluate and
determine the best developed embryo to use in the transfer. Selecting
the best embryos, especially in the case of SET, it important to the overall success.
The reproductive medicine specialists at
ReproMed offer extensive fertility services to help couples choose the fertility
treatment that is right for them. If you have any questions about options
for reproductive medicine near Toronto, give us a call at (647) 558-1486.