AMH

AMH blood test- everything you wanted to know about this common blood test but were afraid to ask

AMH testing, a Q&A: Princeton IVF blog
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Common questions and answers about AMH testing

What is AMH?

Antimullerian hormone, commonly known at AMH, is hormone that is secreted by follicles in the ovary. It was initially studied for its role in reproductive development but is now widely used as a test of ovarian reserve.

What is ovarian reserve?

Ovarian reserve is a measure of the aging of the ovaries, and how many eggs the ovaries are likely to produce when given fertility medications. AMH, day 3 FSH and estradiol levels and antral follicle counts on ultrasound are commonly used measures of ovarian reserve.

What does a low AMH level mean?

A low AMH level, which most doctors consider a level of less than one, indicates that the ovary has fewer eggs available to stimulate. Women with low AMH levels, will usually make fewer eggs when given fertility drugs for IVF or insemination cycles.

Does a low AMH level mean that I am less likely to get pregnant?

AMH is a great test to determine how a woman will respond to medications, but it not as good at predicting pregnancy rates. It is true that women who produce more eggs are more likely to get pregnant, but particularly in young women, who do not need a large number of eggs, there does not seem to be reason to be concerned.

What does a high AMH level mean?

A high AMH level suggests that you are likely to respond very well to fertility injections and may be more likely to become hyperstimulated when taking them. It is also is considered a sign of polycystic ovaries (PCO) although AMH levels are not currently used to make the diagnosis.

Can the AMH level be used to predict if I will have trouble getting pregnant in the future?

Not really. Despite the early hope that AMH could help women know in advance if they might have infertility in the future, it turns out there is no evidence that AMH can predict future fertility.

Celebrities having babies over 40

Pregnancy in your 40s- how realistic is it?: Princeton IVF blog
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The media shows plenty of Hollywood stars having babies in their 40s, but are they telling the whole story?

For many it is exciting to hear about the celebrities they adore having babies. Like many women in the society at large, many celebrities have chosen to delay having children for a variety of reasons. It should come at surprise, then, that many of the celebrity moms depicted in the magazines are in their 40s.

Knowing how women trying to start a family (or growing her current family) as they get older face an uphill battle,  are the media who cover these stories doing a disservice to women's reproductive health?

To answer this question, researchers at New York University looked at all the issues of 3 popular magazines widely read by women of reproductive age over a 4 year period.

This is what they found:

  • There were 1,894 references to pregnancy or fertility
  • 1/3 of the issues had cover stories related to fertility
  • There 240 celebrities, who averaged age 35
  • Only 2 articles on 40+ year olds using donor eggs
  • There were 10 stories about adoption and 5 about using a gestational carrier. Not one of these mentioned that they had previously suffered from infertility

It is understandable that a celebrity (or anyone else for that matter) would not want to share the very personal details of what it is like to go through fertility testing and treatment.  Still, the stories presented to the public are far from complete. While there is nothing that appears to be inaccurate in the articles, they present an unrealistic view of normal fertility after 35.

Modern fertility treatments have revolutionized the ability of couples suffering from infertility to get pregnant, but it has not been able to eliminate reproductive aging. Implying that waiting to have children is not harmful to your fertility through human interest stories is doing a disservice to women. 

Egg freezing- the controversy continues

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Egg freezing- Is it effective and is it a "fertility insurance?"

Several years back the American Society for Reproductive Medicine declared that the freezing and storage of unfertilized eggs (oocyte cryopreservation) was no longer experimental. Reproductive science specialists have worked out the kinks and figured how to freeze, thaw, fertilize and grow these eggs, and from them get healthy live born children. The initial focus was to help women who wanted to have children, but were facing cancer treatment (surgery, chemotherapy or radiation) that might render them sterile. The data on pregnancy rates was very sparse but it in comparison to the alternative in these women, moving forward was a no brainer.

Now researchers in in Canada, have published on the outcomes in couples based on US data. The pregnancy rates range from 4-12 %, and that is in young women under 30.  The rates are likely much lower in women in their 30s and 40s. While not great, it does offer some hope where there was none before. The problems is that now egg freezing is being used to delay childbearing in women for social reasons. With the announcement by google that they will pay for the procedure in their employees and the advent of "egg freezing parties," this is becoming more widespread.

As reproductive medicine specialists, we all want to offer our patients reproductive freedom, the ability to have children at a time that works out in their lives. Undoubtably, freezing and storing eggs for future use will enable some women to have children well into their 40's and early 50's. However, those who are unsuccessful with frozen eggs, and there will be many of them, will be left little choice other than using eggs from a donor, knowing that their biologic clock ran out while they had other priorities in life.

The problem is this: Is egg freezing an answer to a real problem? or is it giving women false hope? It may be a little of both. Only time will tell as the technology moves forward.

How old is too old to try IVF ?

With stories of 45 year celebrities having babies (and sometimes even twins and triplets) with high tech treatments, most people think that age is not a barrier to successful treatment.  When using donor eggs from a young egg donor, that is definitely true. The chances for success with donor egg ivf is excellent, even for women in their late 40's. However that is not the case in women using their own eggs. Pregnancies in women undergoing fertility treatment without the use of a donor over 45 are very unusual.  A recent report from Florida describes a 46 year old woman who is reported to be oldest woman to conceive from IVF with her own eggs. Is this a major breakthrough? Not really. The main determinant over whether a fertilized egg will develop into a healthy baby is whether the embryo is genetically abnormal. Genetically normal embryos are common in 25 year olds but pregnancy rates are never 100%. Likewise, the vast majority of  45 year olds' embryos are abnormal, and so the pregnancy rates would be expected to be quite low but not exactly 0%. When confronted with these odds, most couples would chose not to try.