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Spider
veins are dilated small blood vessels that have a red or bluish
color. They appear mostly on the legs, occasionally on the face
or elsewhere and may often be unwanted.
They can be short, unconnected lines each about the size of
a large hair or connected in a scraggly, "sunburst"
pattern. They may also look like a spider web or a tree with
branches. Sometimes, they occur in a small area and are not
very noticeable or they can cover a large area of skin and be
quite unattractive.
Larger dilated blood vessels called varicose veins may be raised
above the skin surface. They may occur along with spider veins.
Some people with unwanted blood vessels can have pain, ranging
from a dull throbbing pain to a burning sensation. The larger
vessels are more likely to cause discomfort. Although unwantedblood
vessels carry blood, the great majority of them, especially
spider veins, are not necessary. If they are unsightly or uncomfortable,
they can be treated by injection of a solution that will cause
them to disappear or become much smaller. There is about a 50%
- 90% chance for a greatly improved appearance. |
What Causes These Blood Vessels
To Become Visible?
The cause of spider veins is not known. In many cases they seem to
run in families. Identical twins can be affected in the same area
of the body and to the same extent. The condition can very occasionally
occur as part of an internal disease. Spider veins appear in both
men and women, but more frequently in women. The hormones estrogen
and progesterone may play a role in their development. Puberty, birth
control pills, pregnancy or hormone replacement therapy often seem
to bring them out. They may also appear after an injury or as a result
of wearing tight girdles or hosiery held up with tight rubber bands.
Spider veins may also occur with large varicose veins. Spider veins
on the nose or the cheeks of fair skinned persons may be related to
sun exposure.
Can Spider
Veins Be Prevented?
Spider veins can't always be prevented. Wearing support hose may prevent
some unwanted blood vessels from developing. Keeping one's weight
at a normal level and exercising regularly may also be helpful. Eating
a high-fiber diet and wearing low-heeled shoes can also help. Sun
protection is important to limit the number of unwanted vessels on
the face.
How Are Unwanted
Blood Vessels On The Legs Treated?
In the majority of cases, a procedure called sclerotherapy is used
to treat unwanted blood vessels. One of several kinds of solutions,
called sclerosing solution, is injected with a very fine needle directly
into the blood vessel. This procedure has been used for spider veins
since the 1930's and before that for larger veins. The solution irritates
the lining of the vessel, causing it to swell and stick together and
the blood to clot. Over a period of weeks, the vessel turns into scar
tissue that fades, eventually becoming barely noticeable or invisible.
A single blood vessel may have to be injected more than once some
weeks apart, depending on its size. In any one treatment session a
number of vessels can be injected. The solutions available are slightly
different and the choice of which solution to use depends on several
factors including the size of the vessel to be injected. Your dermatologist
will decide the solution that is best for your particular case. Occasionally
larger varicose veins are underneath the spider veins. In such cases,
some physicians believe these vessels should be treated before the
spider veins. This can be done by sclerotherapy followed by compression
or by a surgical procedure performed by a vascular surgeon. Other
physicians belive that spider veins may be treated by sclerotherapy
without worrying about the varicose veins unless they become troublesome.
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Before
Sclerotherapy |
Six weeks after Sclerotherapy |
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Before
Sclerotherapy |
Six weeks after Sclerotherapy |
How Successful Is Sclerotherapy?
After several treatments, most patients can expect a 50% - 90% improvement.
However, fading is gradual. Disappearance of spider veins is usually
achieved, but similar veins may appear in the same general area.
Can Sclerotherapy Be Used On All Skin Types?
Yes. All skin types and skin colors respond equally well.
Will Insurance Cover The Treatment
Of Unwanted Blood Vessels?
Insurance coverage varies. If the treatment is solely for cosmetic
reasons, it may not be covered. Sometimes a second opinion, laboratory
studies or photographs are required by insurance companies before
treatment is started.
Are
There Side Effects To Sclerotherapy?
Even with a highly experienced physician performing the treatment,
there are some possible side effects. They include:
- Stinging or pain at the sites of injection, swelling of the
ankles or feet or muscle cramps. Muscle cramps almost always occur
when the injection takes place in the ankle area. These usually
go away within 10 -15 minutes after injection.
- Red, raised areas at the sites of injection. These should disappear
within a day or so.
- Brown lines or spots on the skin at the sites of treated blood
vessels. Probably made up of a form of iron in the blood, these
darkened areas may result when blood escapes from treated veins.
These dark areas occur more often in patients who have larger
veins treated. In most cases they disappear within a year, but
in a small percentage of patients they may last longer.
- Development of groups of fine red blood vessels near the sites
of injection of larger vessels, especially on the thighs. About
a third of patients develop these. Most disappear by themselves,
some go away with injection treatment or laser therapy, a few
may last.
- Small, painful ulcers at treament sites either immediately or
within a few days of injection. These occur when some of the solution
escapes into the surrounding skin. These can be successfully treated,
but it is necessary to inform the physician of them immediately.
- Bruises at the site where the needle went into the skin. These
will disappear in a few weeks and are probably related to the
thinness of blood vessel walls.
- Allergic reactions to certain sclerosing solutions. Although
such reactions can be serious and require immediate injections
of epinephrine. Less serious reactions are treated with antihistamines.
- Inflammation of treated blood vessels. This is very unusual
but when it occurs it is treated with medications such as aspirin,
compression, antibiotics or heat.
- Lumps in injected vessels, particularly larger ones, may develop.
This is coagulated blood but is not dangerous. The dermatologist
may drain the blood out of these areas a few weeks after injection.
Will Treated Veins Recur?
Larger veins are likely to recur unless support hose are worn. Spider
veins may also recur. It may seem that a previously injected vessel
has recurred, when in fact a new spider vein has appeared in the same
area.
Is A History Of Blood
Clots In the Lungs Or Legs A Reason To Avoid Therapy?
Not necessarily, but the procedure must be done with caution to lessen
the risk of blood clots.
Are
There Other Treatment Methods?
New lasers may hold promise for treating blood vessels, but currently
vessels in the legs do not respond uniformly to laser treatment. Surgically
tying veins off (ligation) or pulling them out (stripping) are other
procedures for treating unwanted blood vessels. They are usually reserved
for large varicose veins.
How
Are Spider Veins On The Face Treated?
There are several ways to treat spider veins on the face. Lasers have
been used successfully, alone or in combination with electric needle
therapy.
What Do I Do After
Treatments?
Physicians may differ in their after treatment instructions to patients.
Depending on certain factors, such as the size of the blood vessels
injected, patients may be instructed to put their legs up for an hour
or two and then walk. Others are asked to walk immediately. All patients
are instructed to walk a good deal in the days following the procedure
so that blood will be pushed through other vessels. Some physicians
bandage the injected areas and instruct patients to "compress"
the treated vessels by wearing support hose. This may help seal the
treated vessels, keep the blood from collecting under the skin and
reduce the development of dark spots. It also may reduce the number
of treatments necessary, and the possibility of recurrence. Others
put tape dressings on the areas and do not use compression unless
the veins are large or have other characteristics. Between treatments,
many physicians recommend the use of compression or support hose.
This may be particularly recommended for people who spend a lot of
time on their feet.
If you would like more information on Vein Therapy, please contact
our office for an appointment.
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