POLYCYSTIC OVARIAN SYNDROME PCOS
The PCOS Center of New York
A division of the Brandeis Center for Reproductive
Health
Is the America’s premiere
website resource for patients seeking advice on PCOS
and related androgen disorders.
The PCOS Center is the first center
in New York devoted exclusively to the diagnosis
and treatment of PCOS.
Dr. Vincent Brandeis, our faculty
of renowned physicians offer patients immediate access
to a multi-disciplinary team approach – recognizing
that PCOS is a condition that affects the entire
body and must be evaluated and treated with a holistic
approach;
• we are the first center
in the US to incorporate acupuncture and herbal medicine
as an integral part of diagnosis and treatment
• we are the first center in the US and possibly the world to offer patients with
immediate phone contact 24 hrs
a day 7 days a week to a physician to
answer questions on matters relating
to PCOS
• Our website includes a chat room, monthly email newsletter, monthly discussion
groups on matters on PCOS diagnosis,
new drug therapies and nutritional
concerns
• We are the only center in the country which holds monthly clinical meetings where
the charts of patients with PCOS are reviewed by a panel of
physicians to allow for an integrated approach rather than
the isolated
view of one physician
• We have ongoing research efforts exploring the relationship of PCOS
to molecular genetics as well as diet strategies and various
medication
protocols for
treatment.
TEAM OF PCOS EXPERTS
Out team of experts include specialists
in the following areas of expertise:
• Reproductive endocrinology
• Dr. Vincent Brandeis board certified in the reproductive endocrinology
is a medical director and founder of PCOS New York
• Dr. Brandeis has over 20 yrs experience in his specialty and has written numerous
articles in his field
• Dr. Brandeis was a member of the first team to perform in vitro fertilization
in New York City and was also a member of the first team
to perform in vitro in the state of New Jersey – one
of the first centers in the East Coast
Dr. Brandeis has achieved thousands of pregnancies
and nationally-known and respected authority
Through his lectures and teaching appointments as
the director of reproductive endocrinology at 2 major
teaching hospitals as well as a consultant at 5 other
hospitals in the NY area, Dr. Brandeis has devoted
ongoing effort and devotion to educating physicians,
residents, interns, and medical students as well
as the general public on issues related to PCOS.
• Endocrinology
• General Medicine
• General Obstetrics and Gynecology
• Nutrition
• Diabetes
• Acupuncture
• Physical Therapy
• Complementary Medicine
• Pediatrics
• Genetics
• Reproductive Immunology
PCOS OVERVIEW
The term polycystic ovarian syndrome
(PCOS) derives from the characteristic appearance
of the ovaries in patients with PCOS – the
ovaries are enlarged and contain numerous cysts (polycystic).
Actually, each cyst is a really a follicle – a
fluid–filled sac that contains immature egg
cell that during the course of the monthly cycle,
continues to grown in size and eventually ovulate
or release the egg at the mid-cycle. In PCOS - there
is a disturbance in the ability of the ovary to make
these follicle sacs grow and ovulate.
PCOS is the most common hormonal
disorder in women of reproductive age and is a major
cause of infertility. Depending upon the criteria
used to define PCOS, at least 5-10% of reproductive
age women in the United States have PCOS and as many
as 30% may have one or more characteristics of PCOS.
Patients with PCOS seek medical
advice for one of the following:
1. The first sign of PCOS can be irregular and heavy
periods that begin in adolescence
with the onset of menstrual cycles.
2. In some cases, there are no symptoms at all and
PCOS is discovered in the course
of an infertility evaluation, through blood testing
or ultrasound studies.
3. Counseling and evaluation for treatment of
obesity and/or excess hair growth
Counseling and evaluation for the treatment of abnormal
cholesterol, insulin/glucose levels and hypertension
Some patients will have the classic findings of irregular
periods, excess weight and excess facial hair – but
PCOS can affect different women in a variety of ways.
The early diagnosis and treatment
of PCOS will reduce the risk of long-term complications – which
include heart disease and diabetes.
PCOS affects the entire body and
as such must be considered in the broader context
of a woman’s overall general health. For many
years, PCOS was underestimated in its relevance to
overall health as well as the frequency with which
it is actually found. Over the past several years,
the medical community has achieved a better understanding
of the true spectrum with which this disorder can
present and its considerable frequency.
Ongoing research about PCOS has
been advanced by many medical disciplines including
gynecology and its sub-specialty of reproductive
endocrinology, internal medicine, general endocrinology,
experts in diabetes, genetics, radiology, pediatrics
and perhaps most importantly, family medicine. As
someone who has studied this syndrome for over two
decades, I strongly feel that we have just barely
scratched the surface as to the health implications
long-term of PCOS.
In conclusion, it is my opinion
that the most significant milestone in women’s
health in the last decade is the awareness of the
relationship between PCOS and general health which
has allowed for the remarkable interdisciplinary
approach to both diagnosis and treatment. Again,
it is my further opinion that the next major milestone
will be to achieve a holistic approach to PCOS with
integration of both Eastern and Western medicine
that allow women to have a full range of options
in terms of treatment, prevention and hopefully one
day a cure.
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HISTORY AND TERMINOLOGY OF PCOS
In 1935, two esteemed physicians
from John Hopkins Medical School in Baltimore – Dr.
Stein and Dr. Leventhal - reported that there was
an association between irregular menstrual cycles
and the surgical finding of enlarged ovaries. By
examining these ovaries histologically, microscopic
analysis showed that the ovaries were enlarged because
they contained many small cysts just beneath the
outer capsule of the ovary. Because of this cystic
appearance, these pioneer clinicians called this
new syndrome Polycystic Ovarian Disease. For many
years, what we call PCOS today was actually referred
to as the Stein-Leventhal syndrome. Based upon their
understanding, PCOS was considered a “disease” with
a limited list of symptoms and characteristic findings
on surgery. In their initial report of 7 women – all
of their patients had long menstrual cycles and most
had excess facial hair and obesity. As time went
on, with better understanding of this condition,
the word “syndrome” replaced the nomenclature
of disease. In other words, clinicians recognized
that there was actually a wide spectrum of symptoms,
physical findings and laboratory results. In fact,
there is a movement now to consider PCOS as a “spectrum” rather
than a syndrome considering the wide variation of
presentation in patients with PCOS.
THE HISTORICAL TRIAD OF PCOS
In the early literature, based
on the early findings of Dr. Stein and Dr. Leventhal
-PCOS was thought to be a triad consisting of;
1) irregular menstrual cycles,
2) facial hair and/or acne and
3) excess body weight.
We now realize that this classic triad does not always
exist.
VARIABLE PRESENTATIONS
OF PCOS
1. Many PCOS patients are actually thin and interestingly,
these thin patients may have
more significant fertility and hormonal issues than
patients who are overweight
with PCOS.
2. Additionally, patients with PCOS can sometimes
present with just excess facial hair
and subtle slightly abnormal laboratory findings.
This group of patients, for many
years, were classified by dermatologists to have
hirsutism of unknown ideology
(idiopathic). Actually these subtle but nonetheless
elevated hormonal
abnormalities are due PCOS
in many cases, when studies with careful ultrasound
technique.
3. Some PCOS patients are fertile and have normal
menstrual cycles. However on ultrasound
evaluation, these patients have the classic findings
of many small cysts in the
ovary – thus suggesting that they are polycystic.
4. In fact, 20-30% of reproductive age women have
polycystic-appearing ovaries despite
being fertile and having no excess facial hair or
any other evidence to qualify
for the diagnosis of PCOS.
Therefore, the findings of polycystic ovaries, described
by Stein and Leventhal, simply do not necessarily
mean that PCOS is present. I strongly urge my readers
to be aware that the more correct and current term
polycystic-appearing ovaries (POA) should be adhered
to differentiate these non-PCOS patients from patients
with PCOS.
Finally, despite the fact that
the ovaries are significantly involved in PCOS as
will be explained later, the ovaries themselves may
not always be the primary cause of PCOS.
MAKING THE DIAGNOSIS OF
PCOS
There are three methods by which
the diagnosis of PCOS is achieved:
1) clinically – through history, symptoms and
physical exam
2) hormonal lab testing
3) ultrasound evaluation
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MAKING THE
DIAGNOSIS OF PCOS - CLINICAL HISTORY
Patients with PCOS experience
their first period:
1) at the usual age of 12-13 years.
2) even earlier at the age of 9 or 10.
3) menses may not occur at all.
Following the first period, the menstrual cycle may
be regular for the first several years. By high school,
the number of days between cycles begins to lengthen
and gradually progress to the point where menstrual
cycles occur months apart.
Some PCOS patients do not have
cycles and only menstruate if Provera or some other
progesterone medication is given. Some PCOS patients
do menstruate but have heavy bleeding and long periods
of spotting between periods.
Some patients with PCOS have regular
28-day cycles - but they are the exception. Most
patients with PCOS have irregular cycle lengths – specifically
defined as cycles greater than 35 days in interval
or less than 8 cycles per year. Therefore any young
patient with long cycles should be evaluated for
PCOS.
When these young patients are
seen by gynecologists complaining of irregular periods,
oral contraceptive pills are often used to regulate
the menstrual cycle. Although the pill will regulate
the menstrual cycle – it does so artificially
- giving the patient the mistaken impression that
her cycle has been “fixed”. Actually,
nothing has been remedied – it is just that
because of the cyclic use of estrogen and progesterone
in the birth control pill, there is a cyclic predictable
bleeding cycle – totally achieved through hormone
therapy.
In addition to questions regarding
menstrual cycles, patients with PCOS will often give
a history of having facial acne and excess hair growth
that begins in early teenage years.
In our experience, women who gain
weight especially greater than 10 percent of their
total body weight, or increase their carbohydrate
intake will often be sufficient to provoke the onset
of irregular periods.
MAKING THE DIAGNOSIS OF
PCOS - HISTORY, SIGNS AND SYMPTOMS
Symptoms usually first appear
during adolescence - about the time that menses first
begins. However, some women may not experience any
symptoms until their early or mid-twenties.
Although PCOS begins in adolescence
and early in life, this condition persists throughout
the reproductive years and beyond. Normally around
puberty, there is a normal increase in the amount
of androgens (adrenarche). Therefore in adolescence,
we commonly find acne and seborrhea. Dermatologists,
on a daily basis, are involved in the evaluation
and treatment of androgen-related skin conditions
that often occur at the time of puberty, when body
image is a keen issue to start with.
Clinical judgment and compassionate
caution must be used to evaluate skin problems in
teenagers. There is a fine line between normal-occurring
skin problems and increased amount of acne or facial
hair that requires an evaluation in the teenager
for PCOS.
It is well-documented that skin
conditions in PCOS patients are related to the increase
in the level of male hormones (hyperandrogenism).
This increase in androgen levels may be
• An increase in the total amount of androgen levels present in the blood
• A relative increase in the ratio of male hormone to female hormone.
• Normal levels of male hormones but an abnormal response of the skin
to normal levels of androgens.
Any of these three possibilities can result in excess
hair growth (hirsutism), acne, balding, seborrhea
and inflammation of the sweat glands in the arm pit
and groin, acanthosis nigricans (described below)
MAKING THE DIAGNOSIS -
ULTRASOUND FINDINGS
In patients with PCOS, there is
characteristic ultrasound findings referred to as
PAO or Polycystic Appearing Ovaries:
• Enlarged ovaries
• At least 8-10 small ( 5-10 mm) follicles around the outer border of
the ovary
Follicles are tiny sacs found in the ovary which
contain immature eggs that usually develop in size
and maturity. When the egg is fully developed, it
will ovulate. At the time of ovulation, the follicle
usually measures around 20mm.
In patients with PCOS, these tiny
follicles do not further develop. Rather, they remain
small and hundreds of these follicles gradually accumulate
just beneath the outer capsule of the ovary – giving
rise to the poly (many) cystic (cystic-appearance
under the ovary).
The ultrasound appearance of polycystic
ovaries is very common and in fact is found in twenty
percent of women in the reproductive age group.
The PolyCystic Ovarian Syndrome
(PCOS) - polycystic ovaries and the clinical and
hormone abnormalities listed above is found in 5
to 10 percent of women of reproductive age. Thus,
PCOS is without a question the most common hormonal
disorder in women of reproductive age.
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HIRSUTISM
AND OTHER SKIN DISORDERS FOUND IN PATIENTS WITH
PCOS
1. Hirsutism (excessive hair growth
on the face and chest and abdomen). Elevated hormones
can oftentimes cause long course hair on the chest,
face, lower abdomen, back,
upper arms and or upper legs.
Hirsutism
is defined as the increase in the coarseness of the
hair texture and/or male
pattern hair distribution. For example, excess hair
growth found between the
umbilicus and the pubic hair line is also a form
of hirsutism.
In addition
to excess facial hair, there also can be male pattern
hair growth (including sideburns,
lower neck, and lower back and inner thighs).
A faint
moustache is also a quite common but maybe more related
to ethnic background or family
trait.
2. Acne, comedones, whiteheads
With the rise
in androgens, there is an increase of sebum. Sebum
itself is a naturally-occurring
combination of old skin tissue and various naturally
occurring oils. As the amount of
sebum increases - there will be a clogging of the
skin pores. Bacteria grow in the
sebum naturally. With the increase in sebum, we commonly
see an inflammation of the skin pores called comedones.
Blackheads are
comedones that are open . The black color is a result
of the breakdown of keratin - a
natural skin pigment. Closed comedones are referred
to as whiteheads.
3. Seborrhea
Seborrhea is another result and sign of an increase in androgens.
4. Alopecia (Baldness)
With a significant
rise of androgens, patients can actually experience
balding (alopecia) and anterior
hair line recession. These sites on the scalp are
affected because these sites are
the most sensitive to androgen levels.
5. Acanthosis nigricans (AN)
Acanthosis nigricans
(AN) is a velvety dark patch closely adhered to the
skin. Acanthosis nigricans has
been described as an area that appears dirty. However
AN has nothing to do with personal
hygiene. Any patient with PCOS should be evaluated
in the presence of acanthosis nigricans (AN) which
is most often seen on the back
of the neck, beneath the breasts, and on the axillae.
AN is often seen in association
with acrochordons – skin tags.
AN can also
be found in patients who are:
• over weight
• diabetic
• have cholesterol problems
• experience hypertension
• have cancer
6. Hidradenitis suppurtiva
In patients with PCOS, we also sometimes find Hidradenitis
suppurtiva, which is a hormonally related chronic disfiguring
and painful condition. These boil-like abscesses can be found
in the axillae and groin and can be wrongly diagnosed as a
result of poor hygiene.
WHY DO ANDROGENS CAUSE
SKIN PROBLEMS IN PATIENTS WITH PCOS?
Understanding the action of androgens
In order for androgens in the blood stream to cause
an effect on the skin – the androgen molecules
must bind with specific androgen receptors in the
skin.
In order for androgens to cause
an effect at the skin level Testosterone must be
converted to dihydrotestosterone by an enzyme called
5a-reductase. 5a actually stands for 5-alpha. Alpha
refers to the position of the hydroxyl radical that
binds to the testosterone molecule. DHT is a much
stronger androgen than testosterone itself. DHT binds
to androgen receptors and causes the hair follicles
to grow.
Evidence has shown the number
of androgen receptor varies greatly from individual
from individual and between different ethnic groups.
Asian women in general have a lesser number of androgen
receptors, and therefore have less facial and body
hair then Italian women.
Therefore, from a clinical standpoint – the
following observations can be explained with the
information we know about androgens, receptors and
DHT:
1. Women with PCOS of Northern Eastern background
or Mediterranean origin are likely
to be much hairier then Asian women with PCOS because
they have more androgen receptors.
2. In some PCOS patients who have high levels of
androgens, we sometimes find no
evidence of any skin problems. The reason for this
could be:
a. that if the androgen receptor is present in only very
low numbers – despite
many androgen
molecules in the bloodstream – there are simply
a very small number
of receptors for these molecules to bind to and therefore
no androgen effect
occurs.
b. there may be a deficiency of 5a-reductase.
3. Some PCOS patients can have normal levels of androgens
but still have hirsutism because they may have:
a. very high numbers of androgen receptors.
b. An increased response of the androgen receptors to normal
levels of male circulating hormones – perhaps
an explanation of idiopathic (undetermined) cause
of hirsutism.
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OBESITY AND PCOS
It is unclear whether obesity
can cause PCOS or whether PCOS can cause obesity.
In my experience, many patients are more likely to
be overweight because of the sugar abnormalities
that result from their PCOS.
• Women who are obese, especially if they have irregular periods, have
the strong likelihood of having PCOS.
• Many women with PCOS are obese.
• Not every woman with PCOS is overweight
• Not every overweight patient has PCOS
Some physicians choose to distinguish between lean
PCOS and obese PCOS patients. The distribution of
fat affects the severity of symptoms found in patients
with PCOS.
The medical literature suggests
that women, in general, who have central obesity – fat
in the trunk or midsection – have higher androgen
levels, glucose and lipid levels, than women who
have accumulated fat in other body areas.
The typical obese patient with
PCOS is described as centripetal – which means
that her fat distribution is primarily concentrated
in the center of her body – as opposed to her
hips and thighs.
Patients who are apple-shaped
as oppose to pear-shaped have greater risk of diabetes,
hypertension and lipid abnormalities.
It is important to know that although
many metabolic problems may improve with weight loss – PCOS
cannot be cured by weight reduction.
However, weight reduction is a
primarily modality in the first line treatment of
PCOS.
Patients with PCOS tend to gain
weight extremely easily and lose weight very slowly
and only with extreme effort. This fact is unfortunately
over looked or not understood by some nutritionists
and weight loss specialists. The diagnosis of PCOS
must be factored in to any weight loss program -
in order for it to be effective and relevant when
dealing with patients with PCOS.
The classic diet approach of “less
in-more out” simply does not work in itself
with all patients with PCOS. Although in general
we can advise calorie restriction and increased exercise
for patients who must lose weight - when advocating
weight loss to a PCOS patient, we must factor in
that patients with PCOS use calories less efficiency
and store fat far more easily than patients who do
not have PCOS.
Insulin is a hormone that is produced
by and released from the pancreas. Insulin is produced
in response to the rise in glucose in the blood stream.
Insulin also acts to facilitate fat storage to provide
the body with a constant source of calories and fuel
in times of “starvation”.
The PCOS is linked to abnormalities
of insulin and glucose metabolism. It is possible
that PCOS is a new phenomenon. In years past when
people ate less and consumed fewer carbohydrates
- it is likely that diabetes and obesity did not
even exist. In the last century, as a result of our
sedentary lifestyle, obesity has presented itself
as a major health hazard and in fact may be thought
of as a genetically related disease. Some individuals
are more prone to weight gain than others.
All the data clearly demonstrates
that weight gain involves not only consuming fewer
calories but also genetic, metabolic, and environmental
influences all impact on both the likely hood of
weight gain, as well as the successful achievement
of temporarily or permanent weight loss. PCOS is
no exception to this.
INFERTILITY AND PCOS
Women with PCOS experience increased
infertility because of irregular cycles which makes
it more difficult to determine when exactly to have
intercourse. However, even in cases where cycles
remain regular, there may be an increase in male
hormone levels within the follicle fluid – and
this will interfere with the ability of the egg to
fertilize the sperm or develop further after fertilization
to form a healthy embryo.
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DIAGNOSING
PCOS - LABORATORY TESTING
All patients with PCOS can have
either an obvious or subtle laboratory abnormality.
In some cases, the result may be in the upper limits
of the normal range, showing perhaps only a tendency – not
a significant abnormality. In some cases a pattern
will be obvious when considering several tests together.
The blood testing that we do for
PCOS patients - is done to distinguish between problems
of the hypothalamus, pituitary, ovary and adrenal
(HPOA axis). All of these organs must work well both
individually and in concert with the other organs.
The proper balance and interaction between them is
necessary to have a normal cycle.
It is recommended that all patients
suspected to have PCOS should have an initial comprehensive
laboratory evaluation, which should be interpreted
by a physician or a group of clinicians who are familiar
with the laboratory findings in patients with PCOS.
PCOS Patients should be aware
that normal levels vary between laboratories and
the specific manufacturer of testing kits used by
laboratories to evaluate blood specimens. Obviously
if a level is two times the upper or lower limit
of normal, this will undoubtedly indicate a significant
problem. Many endocrine levels will vary during the
course of the day – so we recommend as a rule
to do testing best in the morning, and soon after
the first few days after the period. Additionally
patients who are using the birth control pill will
often have misleading results especially for ovarian
steroids and SHBG levels.
I recommend that for the best
diagnostic value, we obtain the blood sample in the
first 2-5 days after a period begins and to avoid
any food or beverages after midnight the night before.
THE FOLLOWING TESTS ARE
NECESARY FOR PCOS EVALUATION:
• Fasting comprehensive metabolic profile including glucose and electrolytes evaluates:
• The overall state of metabolism
• Salt water balance
• Electrolytes (salts)
• Lipid Panel –evaluates cholesterol and triglycerides.
• 3 hour glucose tolerance test (GTT) with insulin levels.
The GTT can detect diabetes and impaired glucose
tolerance.
UNDERSTANDING THE GTT
The GTT is a more sensitive test
than a single measure of glucose. The GTT should
be considered in all patients with PCOS especially
if they are/have:
• 20% above of their ideal body weight
• A first degree relative with diabetes (Have elevated lipid levels, or
delivered a child weighing an excess of 9 pounds.)
According to the American Diabetic Association (ADA)
• A fasting glucose over 126 mg/dl is considered diabetes.
• Fasting levels 110-126 have impaired glucose tolerance.
The term “Type 2 diabetes” is used to
describe the presence of insulin resistance that
results in elevated glucose levels. Type 2 diabetes
has replaced the older terminology of “late,
or adult onset diabetes”.
The ADA recommends a 2 hr screening
testing following a 75-gram glucose drink (load).
Patients who demonstrate a single high fasting insulin
level may have insulin resistance, but the diagnosis
of the insulin resistance can only be made with certainty
by measuring insulin as a part of a glucose tolerance
test where the blood level of insulin is done on
a fasting test and then for one, two, or three hours
after in combination of glucose levels.
• The Ratio of luteinizing hormone to follicle stimulating hormone (LH:
FSH ratio) is a measure of the balance of stimulation from
FSH and LH.
In patients who have PCOS the level of LH is much
higher than the level FSH. Most physicians agree
that when the LH: FSH ratio is greater than 2 to
1, this indicates PCOS.
For example, if the value for
LH is 18, and the value of FSH is 6, that is a 3:1
ratio. If the value of LH is 12 and the value of
FSH is also 12 – that is a 1:1 ratio and the
likelihood of PCOS is less.
At this point, I must interject
a word of caution. The value of LH to FSH ratio is
only significant when one also includes on the same
day the value of estradiol.
If the estradiol is high – that
will cause the FSH to go down and it may be wrongly
implied a LH to FSH imbalance. This point is absolutely
critical in evaluating the results of LH and FSH
testing.
ANDROGENS
1. Total Testosterone and Sex hormones binding Globulin
(SHBG) are used to measure the
free Androgen Index, which helps to determine whether
the source of the androgen is from
the ovary or the adrenal gland.
2. Dihydroepiandrosterone sulfate (DHEAS) is a hormone
produce primarily by the adrenal
gland.
3. 21-hydroxyprogesterone. In patients with congenital
adrenal hormone excess, there is
a increased level of 21-hydroxyprogesterone.This
condition is found in certain ethnic
groups.
Thyroid-Stimulating Hormone (TSH) Many symptoms of
thyroid disorders either under active or over active
resemble those in patients with PCOS.
Prolactin is a hormone that causes
milk production from the breast during pregnancy
and women who are breast feeding. In some women with
menstrual problems, we find an elevation in the level
of prolactin. Therefore, prolactin should be measured
to exclude this as a cause of irregular cycles of
women who are expected to have PCOS.
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HEMOGLOBIN A1C
This is an excellent marker of the level of the average
level of blood glucose over the past three months.
Hemoglobin A1C level is a reliable measure to say
whether diabetes is well controlled. It is advised
to obtain a Hemoglobin A1C level in patients where
diabetes or glucose intolerance is found by the
GTT test.
ULTRASOUND
A pelvis ultrasound should be obtained in every patient
suspected to have PCOS. The sonogram should be
done by the individual whose is experienced in
carefully evaluating the ultrasound findings specific
to patients who have PCOS.
A word of caution when a person
is sent for a sonogram to a radiologist and the purpose
of the sonogram is to determine whether or not the
ultrasound appearance is consistent with or supports
the diagnosis – the technician and the radiologist
must both be aware that we are interested in;
1. The number and size of various small follicles
that are found on the surface of the
ovary.
2. The size of each ovary – in particular their
volume.
3. The presence or absence of large cysts.
4. The thickness of the endometrium – the inner
lining of the uterus
DIAGNOSIS OF PCOS - SONOGRAM
FINDINGS
If a sonogram is done by someone
who is not experienced - then the value of the ultrasound
is limited in its usefulness.
• The finding of greater than eight cystic follicles less than 10 mm in
either ovary is consisted with the generally accepted criteria
for the ultrasound diagnosis of PCOS.
• Follicle cysts in patients with PCOS, are usually located in a ring
that encircles the outer periphery of the ovary often referred
to as a “string of pearls.”
• PCOS ovaries are particularly two to three times normal size. The normal
ovarian volume is about 8-12 ml. In some cases with PCOS,
the ovary is entirely covered by small cysts. In other patients,
the ovary itself may appear to be solid in appearance without
microcystic changes.
Any patient who has elevated androgens can have ovaries
that have the characteristic appearance of polycystic
ovaries – with numerous small cyst found along
the surface of the ovary. Therefore one cannot make
the diagnosis of PCOS just on the basis of the appearance
of the ovary findings.
CAUSES OF PCOS
The ovary is thought to be the origin of the PCOS
disorder because by removing a portion of the ovary
(wedge resection) we can restore regular menstrual
cycles and fertility in medications with PCOS.
The exact cause of PCOS is not
known. The specific central mechanism is still a
matter of debate. Additionally, it is possible that
there is not one but several causes for PCOS all
of which may share common features of a variety of
disorders.
Most patients with PCOS have elevated
male hormones which cause the characteristic findings
of excess facial hair and acne.
Hormones are natural chemicals
released from organs into the bloodstream in very
small quantities. Hormones, by definition, cause
effects at distant sites.
Thus PCOS patients have signs
and symptoms throughout their body.
Female sex hormones (estrogens)
are actually made from androgens (male hormones).
When the amount of androgens present in the bloodstream
are increased or when there is a relative imbalance
(less estrogen than androgen), the unwanted effects
of androgens become apparent.
The androgens produced in the
body and released to the general blood circulation
come from several sources:
1. the fat cells - Therefore patients who are overweight
and have a larger number of fat
cells than normal – have increased androgen
production.
2. Ovary
3. Adrenal gland
PCOS may be of adrenal or ovarian forms depending
upon where the greater amount of androgen comes from – the
ovary or the adrenal.
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IN THE OVARY OF PATIENTS
WITH PCOS:
• Androgens are produced in the small follicle cysts that are seen on
ultrasound.
• The ovary in some patients with PCOS has had multiple follicles that
all measure under 10mm
It is possible that the key to understanding the
cause of PCOS is a factor that prevents follicles
from developing from larger size, and instead causes
them to remain as small cysts that contain immature
eggs, that do not further develop.
The follicles are tiny sacs that
contain egg cells. The theca cells are cells that
surround these follicles and are very important in
providing nutrients to the developing egg cells.
Theca cells contain an intricate network between
themselves that allow substances in the blood to
be transferred from a blood stream to the interior
of the developing follicle. Without theca cells there
would be no way for the hormones from the pituitary
to reach the developing follicle and egg cell.
THE FOLLICLE UNIT PRODUCES
ESTROGEN:
• The way this happens is that first androgens are produced by the theca
cells.
• Androgen is converted to estrogen in the theca cells through an enzyme
called aromatasa that is present in the theca cells.
In patients with PCOS - the theca cells are very
sensitive to LH and because of this, there is increased
production of androgens. This is one mechanism by
which PCOS patients are different than non-PCOS patients
and explains why they have higher levels of androgen
production. Another possibility that there is possibly
a deficiency in the ability of patients with PCOS
to convert androgens to estrogens. Additional considerations
are that insulin resistance and/or disorders involving
hypothalamic-pituitary-ovarian axis are involved
as causes for PCOS. It is further possible that each
of these etiologies may vary between patients in
their level of severity. Nonetheless the ovary remains
in a steady state that prevents the follicles from
progressing to mature large egg cells that are able
to obviate and fertilize with sperm.
PCOS AND INSULIN RESISTANCE
Insulin resistance is a condition
in which the body becomes increasingly less responsive
to the actions of insulin.
The primary action of insulin
is to decrease the glucose level in the blood. In
patients with insulin resistance the blood sugar
level rises despite even high levels of insulin.
Eventually these patients will develop type two diabetes.
In patients with type one diabetes, the pancreas
does not make sufficient amount of insulin.
In patients with insulin resistance,
there can be very high level of insulin, its just
not as effective in making the level of glucose lower.
The clear relationship between
PCOS and insulin resistance is well established.
Additionally, the high level of insulin causes the
androgen level to increase.
PCOS patients who are over weight,
is more likely to have both insulin resistance and
hyperinsulinemia (elevated level of insulin).
PCOS patients who are thin are
less likely to be insulin resistant.
It is important to remember that
insulin facilitates the storage of fat Thus, this
explains the relationship between insulin resistance
and abnormal lipid levels, and hypertension (and
the metabolic syndrome.)
Insulin resistance and hyperinsulinemia
are significant risk factors for the development
of hardening of the arteries (atherosclerosis). This
explains why patients of PCOS are in increase risk
of stroke and high blood pressure.
Hyperinsulinemia causes an increase
in LH and the production of androgen. Because of
androgen elevated levels act to limit follicle growth
and therefore cause disorders in ovulation in regular
menstrual periods.
Elevated levels of insulin is
also associated with where they decrease in sex steroid
binding globulin (SHBG) – which then causes
a increase in the “free or unbound androgen” which
is more potent then bound androgen (androgen bound
to SHBG.)
Finally IR is associated with
the development of type two diabetes. The strong
family tendency to develop PCOS may be linked to
the strong family tendency to develop diabetes.
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GENETICS
OF PCOS
Women with PCOS appear to have
a genetic tendency and often have male and female
relatives who suffer from diabetes, obesity, hypertension,
elevated triglycerides, infertility, and menstrual
problems.
The genetic tendency to develop
PCOS may be inherited from the mother or the father.
When taking history of PCOS in the family, it is
therefore imperative that one ask whether PCOS and/or
diabetes was found on the father side as well.
Another area of interest currently
under investigation is that the specific traits of
PCOS may be inherited with variable degrees of severity
from one’s parents. In other words, there may
be a distinct tendency to develop facial hair that
may not be passed on with the same severity to the
next generation or with greater or less severity.
Given that insulin resistance
is such an important component of PCOS – there
are geneticists that claim PCOS to be passed on by
a discrete number of genes that are involved in glucose
regulation and perhaps by other genes involved in
the production of hormones from the ovary. Possibly,
both genetic groups may be necessary to develop classic
or full-blown PCOS. Additionally, it is entirely
possible that diet and environmental factors such
as stress and exercise may either strengthen or improve
the manifestations of PCOS. Patients with PCOS should
be counseled that it is possible to pass the PCOS
condition to one’s daughter, son or granddaughters.
As we enter a new era of molecular
biology where corrective gene alteration will be
a therapeutic modality, conditions like PCOS may
eventually be remedied at the molecular level early
in life.
PREGNANCY AND PCOS
Patients with PCOS experience
an increase in first semester miscarriage. The primary
cause for this is probably related to poor egg quality
that is commonly found in patients with PCOS. In
performing in vitro fertilization on hundreds of
patients, I’ve had the opportunity to evaluate
personally the quality of eggs seen at the time of
egg cell harvesting. The two things which are constant
that I’ve observed is that PCOS typically produce
many follicles. Unfortunately, many of these eggs
are immature and simply do not do well in the laboratory
environment.
Another cause of increased miscarriage
in patients with PCOS is likely to be the fact that
especially in patients with long cycles, there is
a poorly developed lining of the uterus. Remember
that if someone has 40-day cycles, that means the
endometrium is not receiving the usual benefits effects
of progesterone for 2 weeks out of a 4-week cycle.
This over time will influence the quality of the
lining of the uterus. Therefore, there will be a
higher rate of miscarriage.
PCOS patients experience
the following pregnancy-related complications:
1) pregnancy loss
2) gestational diabetes
3) pregnancy-induced hypertension
In patients with PCOS, the beneficial effects of
increased exercise and weight loss are to increase
the chances of a successful pregnancy.
PCOS THERAPEUTIC OPTIONS
WEIGHT LOSS
Weight loss will often improve
lab findings and often results in the return of regular
predictable menstrual cycles.
Unfortunately, weight loss does
not predictably affect hirsutism to cause a lessening
of the amount of facial and body hair. Diet plans
recommended by the American Diabetes Association
(ADA) are highly effective in patients with PCOS.
The most effective weight loss
plans involve behavior modification and group involvement.
Patients with PCOS should therefore seek out support
groups with other PCOS patients – because their
needs are different.
In terms of exactly which diet
should be used, avoid simple sugars and try to maintain
a low-carbohydrate, low saturated fat, with a focus
on vegetables and fruits with low-glycemic index.
High protein diets have been used
effectively in patients with PCOS but there is no
data to say which is best.
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PROGESTINS
A progestin is a medication that
has similar actions to progesterone. Progesterone
is a hormone produced by the corpus luteum which
forms from the ovarian follicle after ovulation.
The corpus luteum prepares the uterus for implantation
during the last 10-14 days of the cycle. The corpus
luteum has a limited life span of 10-14 days, and
as the corpus luteum begins to break down, there
is a decrease in progesterone level.
The menstrual episode of bleeding
is a result of the loss of the lining of uterus which
occurs as the progesterone level falls. Again, due
to the withdrawal of the progesterone at the end
of the cycle, the lining breaks down and the menstrual
flow begins. When patients do not ovulate, there
is minimal production of progesterone from the surface
of the ovary. When progesterone is given, it will
strengthen the lining and prevent menstrual flow.
Progestins have little effect, if any, on hair growth
or the metabolic abnormalities in patients with PCOS.
In order for progestins to thicken
the lining of the uterus, the uterus must first have
been stimulated or exposed to estrogen. This is referred
to as estrogen-priming. In the normal 28-day cycle,
there are sufficient amounts of estrogen for 40 days
as the follicle and the egg within it grows. In patients
with PCOS who do not ovulate for sometimes months
at a time, the estrogen levels may be typically low
and therefore progestin may not have an effect at
all.
Patients with PCOS have follicles
that remain for months or for years in the very early
stages of egg cell development. Basically the eggs
are suspended at a fixed early phase of egg cell
maturation and do not go on to further growth and
ovulate. The small follicles (cysts) found in patients
with PCOS produce very limited amounts of estrogen.
This low amount of estrogen is often not sufficient
to stimulate the proliferation of growth of the lining
of the uterus. Thus, the lining of the uterus is
constantly exposed to low levels of estrogen that
is not opposed by progesterone stimulation after
ovulation. This constant exposure to low levels of
estrogen over the course of years can lead to hyperplasia – overgrowth
of the lining of the uterus and in some cases, cancer
of the uterus.
The role of progesterone in patients
with PCOS is to cause regular predictable withdrawal
uterine bleeding and help prevent hyperplasia.
ORAL CONTRACEPTIVES
Oral contraceptives are an important
treatment modality in patients with PCOS who do not
want to conceive at this time yet. The estrogen portion
of the oral contraceptive increases the amount of
sex steroid binding globulin (SSBG) which binds to
androgens and because they are neutralized, the effects
of androgens can be decreased.
With the increase of SSBG, there
is less free testosterone because free testosterone
is bound and not unbound active. The progesterone
portion of the pill reduces the amount of LH secreted
by the pituitary gland. Therefore most testosterone
production will come from the ovary. It is important
in choosing the oral contraceptive to remember that
some progestins are androgenic (have the action of
male hormones) and may also adversely affect the
glucose tolerance test results.
Corticosteroids
Corticosteroids have been useful
in the treatment of PCOS because they are able to
suppress the production of androgens from the adrenal
glands. However, their use is limited because they
have no effect on hirsutism and there are complaints
of side effects. The recommended dose of steroids
is 0.25 mg of dexamethasone.
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ANTI-ANDROGENS
Spironolactone
(Aldactione)
This group of medications should
only be used on patients who are not trying to conceive.
Spironolactone (Aldactione) is a diuretic that is
used to treat hypertension. Spironolactone can produce
excess hair growth by blocking the effects of anti-androgens.
Spironolactone blocks the cytochrome P-450 system
that helps regulate the production of androgens from
both ovary and the adrenal gland. Spironolactone
interferes with dihydrotestosterone (DHT) by 5a-reductase
enzyme.
Cyproterone acetate
Cyproterone acetate (CA) is a
potent anti-androgen and a weak progestin. This medication
is available outside the US and is popular in Europe.
Some patients who use CA claim to have had hair loss
and some patients become amenorrheic.
Flutamide (Eulexin)
Flutamide (Eulexin) is a non-steroid
anti-androgen first developed for the treatment of
prostate cancer. Similar to Spironolactone and Cyproterone
acetate, Flutamide is an anti-androgen which works
by blocking androgen at the site of the androgen
receptor. The advantage of Flutamide over Cyproterone
acetate is that it does not have steroid like activity.
The advantage of Flutamide over spironolactone that
is does not affect kidney function.
Many patients complain of dry
skin when using flutamide. Other side effects include
an increase in appetite, fatigue, headache, nausea,
and occasional hot flushes.
Flutamide is cleared from the
body by the liver. Nonetheless, there have been only
rare reports of liver toxicity. Studies differ as
to whether flutamide works better than spironolactone.
Understandably, researchers who have found that they
are of similar effectiveness advocate using spironolactone
because it is less expensive and theoretically there
is less likelihood of liver toxicity.
Finasteride (Proscar or Propecia) acts by inhibiting
5a-redutase activity – therefore it is not
a true anti-androgen which acts at the receptor level.
The original use of Proscar or Propecia was to manage
benign prostatic hypertrophy. Finasteride is now
FDA-approved to treat male pattern baldness in men.
I am optimistic that Finasteride
will prove to be highly effective in the treatment
of hirsutism. Its action is specific to the site
of production of the potent androgen dihydrotestosterone.
Recent studies suggest that Finasteride:
• is equally as effective as spironolactone
• appears to be safe
• extremely well-tolerated
• should not be used during pregnancy
• is more expensive than spironolactone.
Not withstanding the expense, in my opinion It may
soon in my opinion Finasteride will one day be the
medication of choice for many patients.
Vaniqa (Eflornithine) acts by
interfering with ornithine decarboxylase - an enzyme
critical for hair growth that is found in the hair
follicle. I advise patients to use Vaniqa cream twice
daily after the face has been thoroughly cleaned
and dried.
Reports on Vaniqa indicate:
• Marked improvement in a third of patients
• Some improvement in another third
• Mild to no improvement in the remainder.
My guidelines to patients using Vaniqa are:
• The change will be gradual - and may not be seen for 2-6 months
• If there is no improvement after 6 months, consider an alternative medication
• Stop Vaniqa once pregnancy is documented because the safety during pregnancy has
not been documented
Only a very small amount (less than one percent)
of the active ingredient in Vaniqa is actually absorbed
into the body. Therefore, side effects with Vaniqa
are very rare and are usually limited to local skin
sensitivity.
FERTILITY ENHANCING DRUGS
In patients with PCOS, there is
a disorder in the normal mechanisms of hypothalamic-pituitary-ovarian
(HPO) axis. PCOS has an adverse effect therefore
on follicle development and ovulation.
In patients with PCOS, fertility
medications are useful to at least temporarily correct
disorders in ovulation - so pregnancy can be achieved.
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THE TRADITIONAL FERTILITY
MEDICATIONS USED TO TREAT PCOS ARE:
• Clomiphene citrate or serophene
• Injectable gonadotropins – such as Pergonal, Repronex, Fertinex,
Menopure, Bravelle.
All fertility medications act to stimulate the follicles
which contain the eggs on the surface of the ovary.
Giving these medications accomplishes a ready mix
of FSH and LH which are the gonadotropins that stimulate
the eggs to grow every month during the reproductive
years.
Clomid – is an oral medication
that causes the pituitary to release high amounts
of FSH and LH and therefore Clomid will indirectly
stimulate the follicles and the ovaries to grow.
Injectable gonadotropins actually
contain FSH and LH – and therefore directly
stimulate the follicles and the ovaries to develop
and release eggs during ovulation.
The limitation of all fertility
drugs is that they only work for the cycle that they
are given.
For PCOS patients who want to
become pregnant - Clomiphene citrate is the most
common first-line therapy. Clomiphene citrate:
• Is safe
• Rather inexpensive,
• Easy to use
• Can be taken orally
successful for many patients often within the first
few cycles.
Clomiphene citrate (Clomid) is not a hormone - rather
it is a synthetic anti-estrogen.
Clomiphene citrate (Clomid) – Understanding
its mechanism of action
• Tricks the body into perceiving that there is an deficiency in estrogen.
• Accomplishes this by binding to the estrogen receptors in the pituitary
so that estrogen can no longer bind its own estrogen receptors.
• Because the pituitary is not receiving a signal from its estrogen receptors,
the estrogen has bound its receptor – the pituitary
thinks that there is deficiency in estrogen and releases
increased amounts of FSH and LH to try and speed up the number
and size of follicles.
In patients with PCOS - there is an imbalance in
the amount of LH to FSH. In other words, in patients
with PCOS there is a tendency to produce more LH
than FSH – especially when one gains weight.
This results in the higher amounts of LH compared
to FSH when these 2 hormones are measured during
the menstrual phase of the cycle.
CLOMID IS USEFUL
IN PATIENTS WITH PCOS BECAUSE:
• It is an oral tablet and rather inexpensive and requires little monitoring
• It acts to produce more FSH
• Herefore at least temporarily correct this imbalance
• This allows for orderly development of the follicles and ovulation so
pregnancy can hopefully be achieved
The disadvantage of Clomiphene
citrate is that it is an anti-androgen:
• The lining of the uterus is normally stimulated by estrogen during the
first half of the cycle until ovulation to become thick and
therefore receptive to implantation of the embryo.
• Clomid will decrease the lining of the uterus and therefore may decrease
the likelihood of implantation of the embryo.
• Clomid decreases the quality and the amount of the cervical mucus, by
making it thicker and scant. This obviously makes it more
difficult for sperm to move through the cervical mucus at
the time of ovulation.
• Some investigators are concerned about a potential harmful effect on
the egg, and possibly the embryo.
• Nonetheless many patients on Clomiphene citrate do ovulate and get pregnant despite
these drawbacks.
Additional Facts about Clomiphene citrate
• Is currently recommended to try a maximum of six months.
• 70% of pregnancies occur in the first three months
• the pregnancy rate after 6 months is 5-30% depending upon the couple’s
age and their fertility problems such as blocked tubes or
sperm factor
• Twins occur in 5-10% of pregnancies.
• Triplets occur in less than 1% of pregnancies
• Ovarian hyper-stimulation is not common.
• Some reports indicate a increase in pregnancy rate if the birth control
pill is used for several months before starting Clomiphene.
Before the first cycle of Clomid - it is extremely
important to have a base line ultrasound scan to
be certain that:
• There are no ovarian cysts that may decrease the effectiveness of Clomid
• There’s no other pelvic abnormalities
I personally recommend that an ultrasound be performed
every month before starting another cycle of Clomid
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Insulin altering drugs
Metformin can improve ovarian
function and increase fertility outcome in patients
with PCOS.
Metformin can be used before Clomid
or other fertility medications are tried. Metformin
can also be used in combination with Clomid and other
injectable preparations.
Letrozole (Fermara)
Letrozole is an aromatase inhibitor
that has been used for many years for breast cancer.
In patients with PCOS, Letrozole
can be effective in promoting normal cycles because
of its beneficial effects on follicle development
and ovulation.
Important Facts about Letrozole
1) can be taken as a normal tablet and is very affordable
2) low risk of hyper-stimulation – usually
only several follicles develop
3) cleared rapidly from the bloodstream
4) proven to be a safe medication with minimal side
effects
Advantages of Letrozole over Clomid
1) less side effects
2) does not have the adverse effects on the cervical
mucus and uterine lining
There is ongoing research to determine
in patients with PCOS if:
1) Letrozole is as effective as
Clomid
2) Letrozole should be used in patients who have
not been successful with Clomid
GONADOTROPIN INJECTIONS
Clomid is an oral medication used
to stimulate egg cell development. Clomid is an anti-estrogen
which stimulates the pituitary to produce both FSH
and LH which are the gonadotropins that stimulate
egg cell development within the follicles on the
surface of the ovary.
Gonadotropins are combinations
of FSH and LH. Originally FSH and LH were derived
directly from the urine of menopausal women isolated,
purified and produced in a powder preparation called
Pergonal.
Currently, these medications are
produced by a process called recombinant technology.
Therefore, through artificial means, these medications
are biologically perfect molecules that provide an
immediate source of FSH and LH that can be given
by injection to cause multiple egg cells to develop.
The disadvantages of gonadotropins
are:
• Great expense ($1,000-2,000 per cycle)
• Can only be given by injection
• Require frequent monitoring, sometimes daily
• Twinning rate is 20% and triplets 5%
• Risk of hyper-stimulation syndrome – where the ovaries are enlarged
and may leak fluid. This can cause abdominal enlargement and considerable
discomfort
IN VITRO FERTILIZATION FOR PCOS
In Vitro fertilization was first
developed as a treatment method for patients with
blocked fallopian tubes. IVF was then recognized
to be a solution for patients with low sperm counts,
severe endometriosis, and unexplained infertility.
Over the past several years, IVF has been offered
increasingly to patients with PCOS.
The advantage of IVF for patients
with PCOS is:
• Higher success rate than just using fertility medication
• Gives the couple information on the quality of their eggs and the ability
of the eggs to be fertilized
PATIENTS WITH PCOS WHO UNDERGO IVF
• Higher chance of fertilization
failure – the eggs do not fertilize with the
sperm because the egg quality in
PCOS patients is sometimes suboptimal
• Oftentimes either over-stimulate or under-stimulate
• Have a higher rate of miscarriage
• Have a higher rate of hyper-stimulation syndrome
Our understanding of PCOS in the last decade in regards
to the role of insulin and the inescapable presence
of androgen excess both in the bloodstream as well
as within the follicle unit has allowed for new treatment
strategies in medication protocols when stimulating
patients with IVF.
Some of these innovative approaches
that have been introduced include the use of:
1. Birth control pill for several months before the
IVF procedure
2. Preparations such as follistin that contain only
FSH rather than FSH and LH. Patients
with PCOS already have an excess of LH so FSH preparations
alone are recommended primary agent
to be used in stimulation protocols
3. Metformin for several months prior to starting
the IVF stimulation
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SURGICAL THERAPY FOR
PCOS
PCOS was first described by Dr.
Stein and Dr. Levanthal to be ovarian disease. For
many years, the treatment for PCOS was surgical -
because the problem was erroneously thought to be
purely the ovary.
For patients with PCOS, ovarian
wedge resection, in which a significant portion of
the ovary was surgically removed, was the primary
treatment.
With Wedge Resection – we observed:
• significant decrease in
androgen production
• decrease in LH to FSH ratio
• return of regular menstrual cycles in over 75% of patients.
• Pregnancy rates of 50%
However, pelvic adhesions occurred
in 30% of patients who have undergone wedge resection– oftentimes
severe. Additionally, the improvement in regular
cycles was only temporary - lasting three to six
months.
In current medicine, there is
almost no indication for performing a traditional
wedge resection through laparotomy. Laparotomy is
a major surgery where a C-section-like incision is
used to open the abdomen. Laparoscopy is an out-patient
procedure where a small incision is made just beneath
the bellybutton and the recuperation time is days
or weeks rather than in months.
For patients with PCOS who require
a surgical method of treatment, we currently perform
ovarian drilling. A fine cautery needle or a laser
is used to create between 10 and 20 punctures on
each ovary. The cautery needle is attached to a surgical
current. The laser beam is generated by a laser unit
and allows for a highly precise and focused incisions.
Laser and cautery have similar success rates. Ovarian
drilling is currently recommended for patients who
fail to respond to conventional medications.
The exact mechanism by which wedge
resection or ovarian drilling work is still a matter
of debate. It is possible that by reducing the ovarian
mass, there is therefore less production of androgens.
Additionally, by making holes in the thin cortex
(surface of the ovary), it may be easier for follicles
to ovulate.
A theoretical risk for wedge resection
or ovarian drilling is earlier menopause due to destruction
of the oocytes that are in the area that is removed.
COSMESIS
Medical therapy can significantly
slow down hair growth, but it will not completely
stop it. Permanent reduction of unwanted hair can
be accomplished by physical removal with electrolysis
or laser therapy – which actually destroy the
re-growth mechanism of the hair. However, there is
a risk of infection, inflammation, scarring in addition
to the pain involved.
Plucking and shaving are only
temporary fixes. They do not cause hair growth to
come back faster or with coarser hair growth.
For these reasons, medical therapy
is the first line therapy of choice.
Laser is preferred over electrolysis
and works especially best on patients who have fair
skin and dark hair.
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INSULIN ALTERING AGENTS
The association of insulin resistance
and PCOS is well established. PCOS can be treated
and possibly one day cured by effective management
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