Assisted Reproductive Technology (ART) & In Vitro Fertilization (IVF)
Posted Dec 02 2008 11:43am
Assisted reproductive technology (ART) uses special methods to help infertile couples, and involves handling both the woman's eggs and the man's sperm. Success rates vary and depend on many factors. But ART has made it possible for many couples to have children that otherwise would not have been conceived. ART can be expensive and time-consuming. Many health insurance companies do not provide coverage for infertility or provide only limited coverage. Check your health insurance contract carefully to learn about what is covered. Also, some states have laws for infertility insurance coverage. Some of these include Arkansas, California, Connecticut, Hawaii, Illinois, Maryland, Massachusetts, Rhode Island, Texas, and West Virginia.
In vitro fertilization (IVF) is a type of ART that is often used when a woman's fallopian tubes are blocked or when a man has low sperm counts. A drug is used to stimulate the ovaries to produce multiple eggs. Once mature, the eggs are removed and placed in a culture dish with the man's sperm for fertilization. After about 40 hours, the eggs are examined to see if they have become fertilized by the sperm and are dividing into cells. These fertilized eggs (embryos) are then placed in the woman's uterus, thus bypassing the fallopian tubes. Gamete intrafallopian transfer (GIFT) is similar to IVF, but used when the woman has at least one normal fallopian tube. Three to five eggs are placed in the fallopian tube, along with the man's sperm, for fertilization inside the woman's body. Zygote intrafallopian transfer (ZIFT), also called tubal embryo transfer, combines IVF and GIFT. The eggs retrieved from the woman's ovaries are fertilized in the lab and placed in the fallopian tubes rather than the uterus.
ART sometimes involves the use of donor eggs (eggs from another woman) or previously frozen embryos. Donor eggs may be used if a woman has impaired ovaries or has a genetic disease that could be passed on to her baby. And if a woman does not have any eggs, or her eggs are not of a good enough quality to produce a pregnancy, she and her partner might want to consider surrogacy. A surrogate is a woman who agrees to become pregnant using the man's sperm and her own egg. The child will be genetically related to the surrogate and the male partner, but the surrogate will give the baby to the couple at birth.
A gestational carrier might be an option for women who do not have a uterus, from having had a hysterectomy, but still have their ovaries, or for women who shouldn't become pregnant because of a serious health problem. In this case, the woman's eggs are fertilized by the man's sperm and the embryo is placed inside the carrier's uterus. In this case, the carrier will not be related to the baby, and will give the baby to the parents at birth.
Source: National Women’s Health Information Center, U.S. Department of Health and Human Services, www.womenshealth.gov