Heart Failure Treatment "Spectacularly" More Efficient in Women
Posted Feb 08 2011 12:00am
Both egg donation and embryo adoption allow infertile couples to potentially achieve a pregnancy when it would otherwise be impossible. Although perceived to be similar, they are actually two very different processes which each have their own uniqueness and benefits. Exploring these differences will help couples best decide which option is right for them.
Definitions Donor Eggs are unfertilized eggs donated by a woman to another couple for the purpose of creating a pregnancy. The eggs are then fertilized by the sperm of the receiving couple. Should a pregnancy result, the baby will not have the genes of the receiving mother, however it will have the genes of the receiving father. Embryo Adoption is the process by which a couple adopts an embryo for the purpose of creating a pregnancy. An embryo is an egg that has already been fertilized with sperm. The recipients of the embryo adoption have no genetic relationship to the baby should a pregnancy result.
Origins Donor Eggs Egg donors are screened, selected and matched with recipients through an agency or clinic Once matched, the donors begin receiving medication to mature multiple eggs for retrieval. When the eggs are fully matured they are taken out of the donor's ovaries. These eggs are then fertilized with the couple's sperm, which create embryos. Multiple embryos result from this process. However, only several of these embryos are implanted in the recipient. The left over embryos are either frozen for later use, discarded, donated for stem-cell research, or donated to embryo adoption programs. Embryo Adoption When a couple goes through in vitro fertilization (IVF) multiple eggs are matured in a woman's ovaries. These eggs are then removed and fertilized with sperm in a lab. The result is multiple embryos. However, only a few embryos are selected and implanted into a woman to try and achieve pregnancy. The leftover embryos are then either discarded, frozen for later use, donated to research, or donated to embryo adoption programs.
Costs Donor Eggs There are varying costs between each egg donor program . However, couples should expect that the process will cost between 15,000 and 20,000 dollars. Embryo Adoption Typically, between 6,000 ad 18,000 dollars.
Success Rates Donor Eggs According to the Society for Assisted Reproductive Technology, success rates have been upward of 60 percent. If the first cycle fails and a second cycle is attempted the success rate goes up to nearly 80 percent. However, as many as 20 percent of women will miscarry. Embryo Adoption Typically between 16 and 20 percent of embryo transfers will results in a successful pregnancy. This low rate is due to two factors: embryos not surviving the thaw and poor quality embryos. The embryos that are available for donation are, in most cases, left over from IVF treatment or egg donor cycles. These embryos were not selected for implantation because there were other embryos of higher quality that were used. Furthermore, these leftover embryos were created by couples already struggling with infertility, thus likely producing poor quality embryos.
If the father has viable sperm, the baby will have the father's genetic make-up.
Higher success rate of up to 80 percent.
Ability to create multiple embryos to be frozen and used in cases of cycle failure, miscarriage, or future pregnancies.