The word menopause refers to the last
menstrual bleed. Menopause is clinically defined as amenorrhoea of 12 months'
duration after the final menstrual period. Menopause does not usually occur
until a woman has reached her late forties or early fifties. Symptoms of
menopause include hot flushes, night sweats, sleep disturbance, depression and
mood disturbance, memory and attention deficits, vaginal dryness, frequent
urinary tract and Joint pain. For most women the symptoms spontaneously resolve
within a few years (1-2 years). However, about one third of postmenopausal
women will experience symptoms for longer periods and in about 10% women the
symptoms are severe enough to warrant medical help. There are certain long-term
health issues. Resulting from estrogen deficiency, these health issues
primarily consist of an increased risk of cardiovascular disease and
osteoporosis, which increases the risk of bone fractures.
What is Premature Ovarian Failure
(Premature menopause)?
The term premature menopause (premature
ovarian failure) is defined as the occurrence of menopause before the age 45.
Premature ovarian failure can present at varying ages and in many forms. If
premature menopause happens before puberty, the woman will present with lack of
sexual developments and her periods will not started. If the condition presents
after puberty, the woman will suffer from amenorrhoea and infertility. The
diagnosis of premature menopause can be a shattering experience to the women
and her family.
Since the woman's estrogen production is
low, hormone replacement treatment is prescribed to put the brakes on the
premature ageing effects of menopause such as hot flushes, night sweats,
vaginal dryness, low mood and depression and osteoporosis.
Premature Ovarian Failure, Early Menopause
and Pregnancy
Pahlajani Test Tube Baby Centre is a
leading fertility center in India with extensive experience in premature
ovarian failure treatment for women who want to get pregnant with POF. With
POF, correct diagnosis (distinction from premature ovarian aging) and treatment
decision with which each patient feels completely comfortable are the two main
pillars of our treatment philosophy.
What is Premature Ovarian Failure (POF)?
Women with Premature Ovarian Failure
(POF) also known as Primary Ovarian Insufficiency (POI), is a loss of ovarian
function before the age of 40. POF can affect women at various ages from
teenage years to thirties. Women with POF are at a greater risk of a range of
health issues, including osteoporosis, estrogen deficiency (hot flushes,
vaginal dryness, etc.) and heart diseases. These POF-related issues can usually
be managed well with hormonal replacement. However, in an infertility context,
POF poses a challenge, as the loss of ovarian function means that the probability
of pregnancy in women with POF is greatly reduced.
Although it is sometimes called early
menopause, POF is different from menopause in that POF is not a result of
natural (normal) aging process of a woman. Women with POF, in addition, may
continue to have menstrual cycles, though their cycles will be irregular. A
small percentage of women with POF can conceive naturally, while menopausal
women will never get pregnant.
Diagnosis of Premature Ovarian Failure
(POF)
Even if you have been told that you have
POF, it may be too soon to despair. Quite often, we are surprised who is
diagnosed with POF. Many patients with a supposed diagnosis of POF actually
don't really suffer from POF. Many "POF" patients, when tested at our
clinic, turn out to suffer from premature ovarian aging (POA), not POF.
While these two conditions sound
similar, correct distinction between POF and POA is crucial. Women with POA can
get pregnant: CHR physicians have demonstrated, and reported in the medical
literature, remarkably good pregnancy results in women with even severe POA
(with DHEA supplementation and proactive ovarian stimulation). For women with
true POF, chances of pregnancy with their own eggs remain, however,
unfortunately quite small. Pregnancy attempts in POF, therefore, always involve
experimental treatments, as no effective treatment has so far been established
for POF patients.
·
The diagnosis of POF or POI is made with FSH
hormone blood testing, often supplemented with AMH levels and ovarian antral
follicle counts.
·
An FSH level above about 30-40 indicates ovarian
insufficiency.
·
The serum AMH level is low
·
The antral follicle counts are very low
Symptoms of Premature Ovarian Failure
·
Periods becoming more irregular and farther
apart
·
Hot flashes
·
Night sweats
·
Thinning and drying of the vagina
Incidence of premature menopause
About 1-3% of women will experience
menopause before the age 40 years and 5% before the age of 45 years. The
incidence of premature ovarian failure or the early menopause is on the
increase. Premature ovarian failure accounts for about 10% of amenorrhoea and
1% of all cases of infertility.
What are the causes of premature
menopause?
In the majority of cases no cause can be
found. However, tobacco use, null parity, and family history are associated
with earlier menopause. Some of the known causes include:
·
Congenital, if the ovaries failed to develop and
are absent from birth.
·
Chromosomal abnormalities, such as Turner's
syndrome, where the ovaries contain only a few follicles.
·
Genetic (Fragile X premutation). Some women's
ovaries run out of eggs long before their middle age. This is possibly due to
an increased rate of disappearance of follicles. The incidence of familial
premature ovarian failure (POF) varies from 4% to 30%. The risk of a female
relative developing POF may be as high as 100% in familial POF and as low as 1%
in sporadic cases.
·
Autoimmune disease. Thyroid disease and Addison
disease are common in women with premature ovarian failure. Ovarian antibodies
act against the ovaries.
·
The ovaries are physically damaged by
infections, such as the mumps, or by cancer treatment, such as radiotherapy or
chemotherapy. This later group is increasing in number because of the longer
survival of cancer patients due to advances in both diagnostic modalities and
treatment available.
·
The ovaries were surgically removed because of
cancer or other causes.
What fertility options are available for
women with PMM?
At present, the only realistic chance of
a pregnancy for women with premature menopause lies through egg donation.
·
Many fertility centers are now offering ovarian
tissue freezing and storage for women with a positive family history of
premature menopause. The aim is restoration of ovarian function through the
transplantation of ovarian tissue. Although the technique of transplantation
remains experimental, successful transplantations has been reported that ovarian
function was restored within 120 days. Furthermore, they reported six
pregnancies. Some centre described freezing of a whole ovary from six women
(age 26-35 years) prior to cancer treatment.
After a storage period of between 17 and 32 months, ovarian
transplantation was performed. In all cases, the transplanted tissue restored
menstrual cycles within 20 weeks of the transplantation. Four of the six women
conceived following assisted reproduction: two of the women delivered a single
healthy child one woman miscarried.
·
Egg freezing and storage is another option for
women with a positive family history of premature menopause and has no partner.
Many IVF centers are currently offering egg freezing. Technological
improvements in egg vitrification offer young healthy women the possibility of
preserving eggs until the less fertile years of life. The best age for egg
vitrification is probably under 30 years. However, unrealistic reliance on the
store of vitrified eggs may lead some women to defer pregnancy for many years
only to experience disappointment when the stored eggs later fail to fertilize
or implant.
·
IVF with donated eggs and nuclear transfer is
another possible future treatment. Here the nucleus of a healthy donor egg is
replaced with the nucleus taken from a skin cell that 'would be a mother'. The
donor egg is then fertilized by the male partner’s sperm and the resulting
embryo is subsequently transferred into the recipient.
·
Embryo donation is another option if the male
partner is also infertile.
Getting Pregnant with Premature Ovarian
Failure
As already noted above, even in the best
of hands, pregnancy in women with POF is a rare event, and most will end up
having to use egg donation. Our clinic does offer experimental treatments to
POF patients, but we usually recommend donor eggs as the treatment of choice.
However, at our clinic, it is always the patient who decides which way she
wishes to go.
Most POA patients, in contrast, will
have an excellent pregnancy chance with use of their own eggs at Pahlajani Test
Tube Baby Centre. Our center has gained a world-wide reputation for treating
women with premature ovarian aging, and our center's widely published pregnancy
rates, even in women with very severely diminished ovarian reserve, have
resulted in an ever increasing number of POA patients, from all over the world,
seeking treatment at our clinic. Our success in treating POA patients is
primarily based on the introduction of DHEA supplementation into fertility
treatment. Indeed, today seven years later DHEA is used worldwide; but DHEA,
alone, is only part of comprehensive treatment approach to POA. For example, if
a POA patient were to receive the wrong DHEA or was treated for an
inappropriate length of time and, especially, if ovarian stimulation is not
adjusted to the POA patient's needs, DHEA effects will be disappointing. In
other words, DHEA alone has only limited effectiveness, but within a
comprehensive treatment paradigm, it has truly revolutionized the treatment of
women with diminished ovarian reserve.
Unfortunately, DHEA appears much less effective
and maybe even not effective at all, in patients with outright POF. Very low
pregnancy rates in our past DHEA study in POF patients showed us that pregnancy
chances in POF patients would, at best, be affected by DHEA only in a much more
limited way, in comparison to POA patients.
Premature Ovarian Failure and Pregnancy
through Egg Donation
In our opinion, nobody should enter an
egg donation cycle without being absolutely convinced that it is their only
realistic chance of having a child. We, therefore, not only respect our
patients' desire to "at least try once" with their own eggs, but
actually encourage such attempts if patients still believe they have what looks
to them like a reasonable chance. Definition of "reasonable," of
course, varies between patients, and what one patient considers reasonable may
be too low for somebody else. We do not feel that we can make these judgments
for our patients. We, instead, see our responsibility in making certain that
our patients have accurate and comprehensive information when making these
decisions. Only the patients can decide what represents a "reasonable"
chance for them! Once they decide, Pahlajani Test Tube Baby will do its best to
maximize pregnancy chances, whatever treatment patients choose. Egg donation
is, undoubtedly, the most successful treatment option for women with POF. With
their own eggs, POF patients have a pregnancy chance, at most, in the low
single digits. In our egg donor program, the same POF patient will have a
cumulative pregnancy rate in the high 80s to low 90s, from a single egg
donation cycle. Since about 95% of an embryo's quality derives from the egg,
and egg donors are typically young, recipients of donated eggs will have the
pregnancy chances and miscarriage risks of a young woman. Imagine if we could
do this in other areas of medicine!
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