Risks of in vitro fertilization (IVF)

Risks of in vitro fertilization (IVF)Risks of in vitro fertilization (IVF)

[one_half last=”no” spacing=”yes” background_color=”” background_image=”” background_repeat=”no-repeat” background_position=”left top” border_size=”0px” border_color=”” border_style=”” padding=”” class=”” id=””] IVF is a method of assisted reproduction in which a man’s sperm and a woman’s eggs are combined outside of the body in a laboratory dish. One or more fertilized eggs (embryos) may be transferred into the woman’s uterus, where they may implant in the uterine lining and develop. Serious complications from IVF medicines and procedures are rare. As with all medical treatments, however, there are some risks. This document discusses the most common of those risks.
What kind of side effects can occur with IVF medicines?
Usually, injectable fertility medications (gonadotropins) are used for an IVF cycle. These medicines help stimulate a number of follicles with eggs to grow in the ovaries. A more detailed discussion of fertility medications can be found in the ASRM booklet, Medications for inducing ovulation.
Possible side effects of injectable fertility medicines include:
• Mild bruising and soreness at the injection site (using different sites for the injections can help)
• Nausea and, occasionally, vomiting
• Temporary allergic reactions, such as skin reddening and/or itching at the injection site
• Breast tenderness and increased vaginal discharge
• Mood swings and fatigue
• Ovarian hyperstimulation syndrome (OHSS)
Most symptoms of OHSS (nausea, bloating, ovarian discomfort) are mild. They usually go away without treatment within a few days after the retrieval. In severe cases, OHSS can cause large amounts of fluid to build up in the abdomen (belly) and lungs. This can cause very enlarged ovaries, dehydration, trouble breathing, and severe abdominal pain. Very rarely (in less than 1% of women having egg retrieval for IVF), OHSS can lead to blood clots and kidney failure. For more information about OHSS, see the ASRM fact sheet Ovarian hyperstimulation syndrome.
Earlier reports from several decades ago suggested a link between ovarian cancer and the use of fertility medicines. However, more recent and well-done studies are reassuring and do not show this association.
What are the risks of the egg retrieval?
During the egg retrieval, your doctor uses vaginal ultrasound to guide the insertion of a long, thin needle through your vagina into the ovary and then into each follicle to retrieve eggs. Possible risks for this procedure
include:
• Mild to moderate pelvic and abdominal pain (during or after). In most cases, the pain disappears within a day or two and can be managed with over-the-counter pain medications.
• Injury to organs near the ovaries, such as the bladder, bowel, or blood vessels. Rarely, bowel or blood vessel injury can require emergency surgery and, occasionally, blood transfusions.
• Pelvic infection (mild to severe). Pelvic infections following egg retrieval or embryo transfer are not common. Severe infection may require hospitalization and/or treatment with intravenous antibiotics.
• Rarely, surgery may be required to remove one or both of the ovaries and tubes and/or uterus. Women who have had pelvic infections or endometriosis involving the ovaries are more likely to get IVF-related infections.
What are the risks associated with the embryo transfer?
A catheter containing the embryos is used to gently place them into the uterus (womb). Women may feel mild cramping when the catheter[/one_half][one_half last=”yes” spacing=”yes” background_color=”” background_image=”” background_repeat=”no-repeat” background_position=”left top” border_size=”0px” border_color=”” border_style=”solid” padding=”” class=”” id=””] is inserted through the cervix or they may have vaginal spotting (slight bleeding) afterward. Very rarely, an infection may develop, which can be treated with antibiotics.
If I conceive with IVF, will my pregnancy be more complicated
(than if I conceived on my own)?
Having multiple pregnancies (pregnancy with more than one baby) is more likely with IVF. These pregnancies carry significant risks, including:
• Preterm labor and/or delivery: premature babies (regardless of whether or not they were conceived naturally or with IVF) are at higher risk for health complications such as lung development problems, intestinal infections, and cerebral palsy
• Maternal hemorrhageRisks of in vitro fertilization (IVF)
• Delivery by cesarean section (C-section)
• Pregnancy-related high blood pressure
• Gestational diabetes
The more embryos that are transferred into the uterus, the greater the risk. Your doctor should transfer the minimum number of embryos necessary to provide a high likelihood of pregnancy with the lowest risk of multiple pregnancies. For more information about multiple pregnancies, see the ASRM booklet titled Multiple pregnancy and birth: twins, triplets, and high-order multiples.
Will IVF increase the risk of my child having a birth defect?
The risk of birth defects in the general population is 2%-3% and is slightly higher among infertile patients. Most of this risk is due to delayed conception and the underlying cause of infertility. Whether or not IVF alone is responsible for birth defects remains under debate and study. However, when intracytoplasmic sperm injection (ICSI) is done along with IVF, there may be an increased risk of birth defects.
In addition, there may be a slightly increased risk of sex chromosome abnormalities with ICSI. However, it is uncertain if these risks are due to the ICSI procedure itself or to inherent sperm defects. Men with sperm defects are more likely to have chromosomal abnormalities, which can be transmitted to their children. Imprinting disorders have been implicated with IVF. However, these disorders are extremely rare.
Miscarriage and Ectopic PregnancyRisks of in vitro fertilization (IVF)
The rate of miscarriage after IVF is similar to the rate following natural conception, with the risk going up with the mother’s age. The rate of miscarriage may be as low as 15% for women in their 20s to more than 50% for women in their 40s.
There is a small risk (1%–2%) of an ectopic (tubal) pregnancy with IVF. If an ectopic pregnancy occurs, a woman may be given medicines to end the pregnancy or surgery to remove it. If you are pregnant and experience a sharp, stabbing pain; vaginal spotting or bleeding; dizziness or fainting; low back pain; or low blood pressure (from blood loss), and have not had an ultrasound confirming that the pregnancy is in the uterus, call your doctor immediately. These are all signs of a possible ectopic pregnancy.
Revised 2014
For more information on this and other reproductive
health topics, visit www.ReproductiveFacts.org[/one_half]

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