What
are varicose veins?
Varicose veins are enlarged, dilated veins
that can no longer perform their function
of carrying blood from the legs back up
to the heart. Healthy veins have one-way
valves which open to allow blood flow to
the heart and close to prevent reflux of
blood backwards into the legs. When these
valves get damaged the force of gravity
pulls the blood back down the leg and causes
it to pool inside the weakened veins. Over
time, the constant overfilling causes the
non-functioning veins to develop their typical
bulging appearance. Common symptoms caused
by varicose veins are tired, heavy, aching,
swollen legs which are usually worse by
the end of the day. After treatment of the
diseased veins, these symptoms will resolve.
Without treatment, varicose veins may cause
complications such as ulceration, inflammation
of the skin and the vein itself, and blood
clots.
What causes varicose veins?
This is a common problem that affects between
15-25% of all adults and approximately 50%
of all people over age 50. The number one
factor contributing to the development of
varicose veins is heredity. A genetic predisposition
causes the valves to function improperly
and the veins to weaken. About 70% of all
patients with varicose veins have parents
with the same condition. If you have a family
history of vein disease, there is nothing
you can do to change your genes. Other factors
that are thought to contribute to the development
of varicose veins are obesity, pregnancy,
standing or sitting for long periods of
time and traumatic injury to the leg.
How are varicose veins treated?
Conservative Treatment
The mainstay of treatment for chronic venous
insufficiency, the condition causing varicose
veins, is the daily use of prescription-strength
compression stockings. These stockings can
alleviate symptoms caused by varicose veins
such as swelling, aching and pain. They
are also useful in the prevention of the
formation of ulcers. Compression stockings
do not change the appearance of the varicosities
and, to be effective, they must be worn
every day for your entire life.
Medical Treatment
Sclerotherapy – Sclerotherapy
involves the injection of a mild chemical
solution into the diseased veins. It is
used to treat small to medium size varicose
veins and spider veins. The desired outcome
is that the solution will cause the inner
lining of the vein to become irritated,
therefore causing the vein to collapse and
seal closed. The treated vein will gradually
disappear as it is absorbed by the body.
The injections are relatively painless and
only small, very fine needles are used.
Anesthesia and sedation are not needed,
as this procedure can be performed in the
office.
When diseased veins are too deep below
the skin surface to be treated with traditional
sclerotherapy, ultrasound can be used to
guide the injections. The chemical solution
can then be administered safely and accurately
because the vein can be seen on the ultrasound
monitor as the solution is injected.
Sclerotherapy can also be performed using
foam instead of liquid. In this technique,
the same solutions are used as in traditional
sclerotherapy, but they are mixed with air
to form foam. The foam is then injected
in the same manner as the liquid solutions.
Foam stays in the treated area longer, allowing
better contact of the sclerosing agent with
the inner lining of the vein and therefore,
better results.
Ambulatory Phlebectomy
– Phlebectomy is a procedure used
to remove both large and small varicose
veins. Tiny incisions are made over the
affected veins, through which they are then
removed. The incisions are closed with sterile
tape and once healed, are virtually unnoticeable.
This procedure is considered minimally invasive
and is different from traditional vein stripping.
Vein Stripping Surgery
– Traditional treatment for larger
varicose veins involves “stripping”
the veins. This surgery is painful and requires
hospitalization and general anesthesia.
The incisions are larger and more numerous,
resulting in more obvious scarring. There
is also a lengthy and painful recovery associated
with this procedure. Vein stripping is known
to have a high rate of recurrence, requiring
further treatment and inconvenience to the
patient. All of these factors have made
this procedure the less desirable choice
of treatment.
Endovenous Laser Treatment (EVLT)
– Endovenous Laser Treatment is a
new and effective alternative to vein stripping
surgery to treat varicose veins. Using ultrasound
guidance, a thin laser fiber is inserted
into the diseased vein through a small puncture
incision in the leg. Once the fiber is activated,
it delivers laser energy in the form of
heat and causes the vein to close. The physician
gradually removes the fiber and the treated
vein seals shut behind it. This procedure
is minimally invasive and does not require
hospitalization or general anesthesia. It
is performed using local anesthesia and
conscious sedation. There is minimal pain
associated with EVLT and patients are usually
allowed to return to normal activities the
next day. In some cases EVLT is used in
combination with other treatments, such
as sclerotherapy, to give the best possible
result. |