29.12.2014

Ivf over 40 how many eggs

When couples are trying on their own to get pregnant the fertility issue that reduces chances for success is related to the quality of the eggs. Although these age and fertility statistics are specifically about IVF success, there is a similar loss in fertility potential with aging in the general "normal fertile" population. Another point shown here is that there not a substantial decline in success by age of the recipient woman with donor egg IVF.
The national summary (as well as clinic specific results) of IVF success rates for cycles done in years 1995 through 2012 are posted on the CDC website. All clinics have some upper age limit after which they will not perform in vitro fertilization with the woman's own eggs. Before we stimulate the woman with the FSH containing drugs, antral follicle counts are the best predictor of the response the ovaries will give, and the number of eggs that will be retrieved. To some extent, the more eggs we have to work with, the greater the chance that IVF will be successful. More eggs will give us more fertilized eggs - which results in more likelihood of having 2 good quality embryos for the embryo transfer procedure. Women under 38 in our IVF program have acceptable live birth rates even with only 3 - 6 eggs, do better with more than 6 eggs, and do best with more than 10 eggs.


IVF can be used as an effective treatment for infertility of all causes except for women with infertility caused by an anatomic problem with the uterus, such as severe intrauterine adhesions.
Implantation rates are considered by fertility doctors when talking with couples about their chances for IVF success rates and multiple births. Before you choose an in vitro fertilization clinic for your treatment, make sure you know the IVF success rates of the clinics you are considering. Both SART and the CDC (US government agency) make this easy by posting success rates for all reputable IVF clinics on their websites.
However, perhaps because we have five fingers on our hands we tend to think in fives and tens. With treatments such as IVF, the issue that holds back success potential is both egg quality and egg quantity. With IVF treatment we hope to get multiple embryos so we can choose the best ones from a group for transfer back to the uterus. The rate of chromosomal abnormalities in eggs (and therefore also in embryos) increases significantly with advancing female age. However, when going through a fertility treatment such as IVF, the quantity of eggs remaining influences response to ovarian stimulating medications.


This report was generated from national data from hundreds of clinics and well over 100,000 IVF cycles. As women age, we need more eggs to be able to make IVF work - because of the lower quality of the eggs. Women that have had tubal ligation and are considering tubal reversal surgery as well as men that are considering vasectomy reversal surgery might also consider IVF.
By transferring the fertilized embryo(s) directly to the uterine cavity, fertility is improved for many couples that have sperm issues (fertilization defects), or issues on the female side related to egg pickup from the ovary, or tubal transport of the embryo to the uterus. If the rates drop significantly it should trigger a thorough evaluation of the entire IVF system. Reduced egg quantity and quality is usually treated with either IVF, or with IVF with egg donation.



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