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Uterine Fibroids
Fibroids are an abnormal growth of the muscle cells in your
uterus. They can be in the uterine cavity, in the muscle wall and
on the outside of the uterus. They are almost always not a cancer.
Causes
We don’t really know what causes fibroids. What we do know is that
they are the overgrowth of a single muscle cell of the uterine wall, and
we know that they usually are passed down in families.
Signs and Symptoms
They may cause irregular bleeding if they are in the uterine cavity
or the wall of the uterus. They usually won’t cause bleeding if they are
on the outside of the uterus. They can also affect fertility, by
decreasing pregnancy rates and increasing miscarriage rates, but only if
they are in the uterine cavity, or very near it, or within the wall of
the uterus. When fibroids become very large, they can also produce
problems with functioning of nearby body parts. This can result in
problems in urination and bowel movements. They may also cause bloating
and abdominal discomfort.
Decision to Treat or Remove Fibroids
About 30% of women ages 13-50 have fibroids. They should only be
treated if you are having signs or symptoms that you need to manage.
Many treatment options are available to women that have symptoms
resulting from uterine fibroids. These will be discussed from the least
to most invasive options:
Do Nothing
Fibroids are benign tumors that very rarely become cancer. As many as
30% of all women have at least 1 fibroid. Thus, we only treat women for
fibroids if they have a specific problem due to these growths. Such
problems include excessive or irregular menstrual bleeding, infertility,
recurrent miscarriage, preterm labor, malpresentation of a fetus during
pregnancy, constipation or pelvic pain. If you do not suffer from any of
these problems, or if they are not severe enough for you to seek
treatment, then observation and regular checkups may be all you need to
do. Since these fibroids grow in response to hormones secreted from the
ovaries, once you reach menopause, and your ovaries are no longer
functional, the fibroids usually shrink on their own.
Medical Therapy
A number of medical treatments are available to reduce the size of
fibroids and, in doing so, frequently decrease the symptoms caused by
them. Lupron, an injection that can last from 1-3 months, causes a
temporary medical menopause and can reduce the volume of the fibroid by
about 50%; the addition of a drug called Evista® will cause the fibroid
to shrink even more. However, these drugs have side effects such as hot
flashes, mood changes and the absence of menstrual periods while you are
taking them. Also, the fibroids remain small only while you are taking
the medication, and once you stop the drugs, the fibroids will return to
their original size within a few months. Medical therapy is mostly
helpful prior to surgery, it may allow the surgery to be performed more
quickly and safely. It is also useful if a woman is near the menopause
herself.
Destruction of the lining of the uterus is a method of treatment
that is effective for women who are having bleeding problems from
fibroids. The procedure can be performed in the office with minimal
anesthesia, or in the operating room with general anesthesia. The
technique is to burn, freeze, or remove the lining, thus preventing
most menstrual bleeding from occurring. It requires about 45 minutes,
and is performed by placing an instrument through the vagina and
cervix and into the uterine cavity. No incisions are required.
Recovery is very rapid, usually only a few hours. This procedure is
not appropriate for women who desire future childbearing or who have
fibroid symptoms other than bleeding.
Myolysis means that the fibroids are not removed, but merely heated
or cooled to a very extreme temperature while left in place in the
uterus. This causes the fibroid to shrink and the symptoms to get
better. One problem with all of the myolysis procedures is the effect
upon subsequent pregnancies is not well understood. In fact, there is
some information that pregnancies in women after they have had
myolysis can be dangerous to the baby and to the woman herself. If
childbearing is a priority for you, then we would not recommend
myolysis. There are a number of different types of myolysis techniques
available.
- Uterine Artery Embolization
This is a technique performed by the Interventional Radiologists. An
incision is made in your thigh, and a small tube is threaded through
your blood vessels to the uterus while the Radiologist watches on
X-Ray. Small plastic particles are then ejected into the blood
vessel to plug it up. This is usually done on the right and left
side of the body. This lack of blood causes the fibroids to shrink,
and symptoms get better about 80% of the time. The side effects
include pain, which may last for as long as a week. Sometimes, you
will lose your periods all together after this procedure. Your
ovaries may also be affected causing early menopause. The advantage
of this procedure is that it does not require surgery.
- Laparoscopic uterine artery ligation
Using minor surgery, a gynecologist can isnert a telescope and small
instruments into your abdomen. Once there, the blood vessels to the
uterues are identified and then either tied, clipped or burned.
Results are virtually identical to uterine artery embolization. The
procedure requires 3 small incisions on your abdomen, and usually
takes about 1 hour. General anesthesia is needed. Recovery is
generally hours to days, and within 1 week you should be back to
normal.
- Laparoscopic myolysis
Instead of damaging the blood supply to the fibroids and uterus, a
gynecologist can directly destroy the fibroid tisse. This is also
done with minor surgery, with 3 small abdominal incisions and
general anesthesia. The techniquie involves inserting
instrumentation directly into the fibroids, one at a time, and
destroying them with heat (via electrical energy or laser) or
freezing. The procedure requires about 11/2 hours, and produces
results similar to uterine artery embolization. Complications
include pain or bleeding following surgery, although these are not
common. Recovery is similar to laparoscopic uterine artery ligation.
Removal of fibroids (myomectomy) and subsequent repair of the
uterus can be accomplished by a variety of techniques, depending upon
the location, size, and number of fibroids to be removed. If you are
considering future childbearing, this is the safest method for you to
use to treat your fibroids.
- Hysteroscopic myomectomy
When fibroids are mostly within the inside cavity of the uterus,
they can be reached by placing a telescope and instruments through
the vagina and cervix and into the uterine cavity. No incisions are
required, although general anesthesia is needed. An electrical loop
is used to carve out the fibroid, piece by piece. The procedure can
take anywhere from 20 minutes to 2 hours depending upon the size of
the fibroid. Recovery is rapid; you should feel back to normal in a
matter of hours. One problem is that for large fibroids, the
procedure not be able to be completed in a single setting.
Occasionally, a second surgery is required. Another problem is that
many fibroids cannot be removed by this technique, and require other
methods of access.
- Laparoscopic myomectomy
For fibroids within the wall of the uterus or on the outside of the
uterus, removal can be accomplished through minor surgery involving
general anesthesia. Three incisions are usually required, each ½
inch long. The surgery can take form 1-4 hours, depending upon the
size and number of fibroids. The biggest danger is excessive
bleeding; if this occurs, we will make a large abdominal incision to
keep you safe and complete the surgery that way. Recovery requires
about 2-7 days, and is done at home. You will only be kept overnight
in the hospital if we feel we need to observe you, you are having
trouble with nausea, or it is late in the day when the surgery is
completed.
- Abdominal myomectomy
When fibroids are too numerous, or too large to remove through a
laparoscope, major surgery is required. This procedure, an abdominal
myomectomy, requires an incision along the lower abdomen (a bikini
cut), and is usually 6-12 inches in length. This surgery requires
several hours to perform, is done with general anesthesia, and
mandates a lengthy recovery: generally 2 days of hospitalization and
2-6 weeks of at-home recovery. The uterus is healed and ready for a
pregnancy 3 months later. For difficult cases, there is a risk of
bleeding or infection, but this is not a major problem with most
myomectomies.
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