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Modesto Vein Center |
4101
Tully Road |
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The content of this page provided in part
by the:
"American Academy of Dermatology"
Sclerotherapy
Spider veins are small, superficial blood vessels that appear red or blue. They commonly occur on the legs, but frequently occur on the face or elsewhere.
These dilated blood vessels may be short, unconnected lines each about the size of a large hair, or connected in a matted, "sunburst" pattern. They may also look like a spider web or a tree with branches. Sometimes, they occur in a small area and aren't very noticeable, or they can cover a large area of the 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.
Patients can have symptoms, ranging from a dull throbbing pain to a burning sensation. The larger vessels are more likely to cause discomfort, although smaller blue reticular and spider veins have been shown to cause pain.
If spider veins are unsightly or uncomfortable, they can be treated with laser therapy, or by injection of a solution that will case them to disappear or become much smaller. There is about a 50-90 percent chance for a greatly improved appearance.
What causes these blood vessels to become visible?
The cause of spider veins is not completely 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 rarely occurs as part of an internal or systemic disease.
Spider veins appear in both men and women, but more frequently in women. Female hormones 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, as a result of wearing tight girdles, or from hosiery held up with tight rubber bands. Spider veins may also occur in association with large varicose veins.
Can spider veins be prevented?
Spider veins can't always be prevented. Wearing support hose may minimize 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 may 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?
The injection method, a procedure called sclerotherapy is used to treat unwanted blood vessels. One of several kinds of solutions, called a 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, stick together, and the blood to thicken. Over a period of weeks, the vessel turns into scar tissue that is absorbed, eventually becoming barely noticeable or invisible.
A single blood vessel may have to be injected more than once, some weeks or months 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. Our staff physicians will choose a solution that is best for your particular case.
Frequently, larger varicose veins and smaller subdermal reticular veins are beneath or “feed into” the spider veins. In such cases ,most physicians believe these vessels should be treated before the spider veins. This can be done by sclerotherapy, microsurgical excision, or radiofrequency ablation
Sclerotherapy
How successful is sclerotherapy?
After several treatments, most patients can expect a 50 percent to 90 percent improvement. However, fading is gradual, usually over months. Disappearance of spider veins is usually achieved, but similar veins may appear in the same general area.
Can sclerotherapy or lasers be used on all skin types?
Yes. All skin types and skin colors respond equally well.
Are there side effects to spider vein treatments?
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 - Some solutions for injection are relatively pain-free. Muscle cramps almost always occur when the injection solution is hypertonic saline although the adverse symptoms usually resolve within 10 to 15 minutes after injection. The Modesto Vein Center uses FDA approved STS (sodium tetradecyl sulfate) in various concentrations as the sclerosant of choice. There is minimal discomfort with this solution.
Red, raised areas at the sites of injection - These should disappear within a day or so and are like hives.
Brown lines or spots on the skin at the sites of treated blood vessels - Probably make up of a form of iron in the blood, these darkened areas may result when blood escapes from treated veins. These pigmented areas occur more often in patients who have larger veins treated. In most cases, they disappear within six months to a year, but in a small number of patients (less than 2%) they may last longer. Laser treatment may cause skin discoloration.
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 additional injection treatment or laser therapy while a few may last.
Small, painful ulcers at treatment sites either immediately or within a few days of injection - These occur when some of the solution escapes into the surrounding skin or enters a tiny artery at the treatment site. 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, they are extremely rare and can be treated by your physician. Minor reactions can be 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, similar to a bruise, within the vein, but is not dangerous. Your physician may drain the blood out of these areas a few weeks after injection.
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Before sclerotherapy |
After 6 weeks |
After 14 weeks |
Will treated veins recur?
Larger veins may recur even after surgical procedures. 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 cautions to lessen the risk of blood clots.
Are there other treatment methods?
For larger varicose veins, radiofrequency may be used as well as minimally invasive stripping, and micro-phlebectomy. Great advances have been made in the use of ultrasound to guide injection of varicose veins not visible at the skin surface.
How are spider veins on the face treated?
There are several ways to treat spider veins on the face. The Modesto Vein Center uses the Aura® and Lyra® Laser systems to effectively remove these tiny vessels.
What do I do after treatments?
Physicians may differ in their after-treatment instructions to patients. Most advise their patients to "pump" the sclerosing solution from the venous circulation by walking following the procedure.
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, as wellas possibility of recurrence. Others put tape dressings on the areas and do not use compression unless the veins are large or in special locations.
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 or work in a standing occupation.
The treatment of spider and small to medium sized varicose veins can be successful. Treatment methods vary depending on the relative size and location of the abnormal veins. The direct injection method is presently most commonly used but great advances have been made in other techniques such as radiofrequency ablation, transillumination and ultrasound guided injections, and high-end laser systems.