Patients Corner
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Sclerotherapy
& Other Varicose Vein Therapies
What are varicose veins?
Varicose veins are dilated, bulging and twisted
veins that form due to circulatory problems of the
venous system. This can be caused by a majority
of reasons, but genes play a major role in their
appearance.
Varicose veins are visible in more than 20% of men
and over 40% of woman.
The most common site for varicose veins is on the
legs.
What causes varicose veins?
Veins carry de-oxygenated (oxygen poor) blood from
the body towards the heart. This backflow of the
oxygen poor blood is ensured by normal function of
the veins, their walls and their valves. Varicose
veins have weakened walls and valves causing them to
dilate and become twisted. This can be seen
especially with the superficial veins close to the
skin. The abnormal valves combined with gravity
causes pooling of the blood that gives rise to the
swelling (dilating) of the veins.
This abnormal functioning can result because of
genetic predisposition (runs in the family),
overweight, hormonal changes, pregnancy, long
periods of standing (occupation related) and other
medical diseases may also aggravate this condition.
Varicose veins can lead to venous thrombosis (blood
clots) that will further affect the circulation. The
poor circulation leads to swollen and painful
ankles, feet and legs; skin changes on the lower
legs (darkening, scaling, itchiness, skin
temperature changes) and even ulcers on the lower
legs. This condition is called venous stasis. Blood
clots in the legs can be very serious and symptoms
include swelling, redness and pain especially around
the affected vein.
Varicose veins become more bluish with time due to
the blood pooling in the veins. Spider veins are the
very fine veins surrounding the larger veins.
It is important to treat varicose veins to prevent
blood clotting, improve deeper vein circulation and
improve other problems such as leg pains, swelling
and skin changes.
WHAT IS SCLEROTHERAPY?
Sclerotherapy is a “non-surgical” method for the
treatment of unwanted varicose veins.
A doctor uses a very fine needle to inject a
sclerosing solution into the veins that causes the
vein to contract and the vein walls to stick to each
other which will cause the vein to disappear. The
injected veins become inflamed, blood is then unable
to flow through them and ultimately, the body
absorbs these non-functioning vessels.
DOES SCLEROTHERAPY WORK FOR EVERYONE?
The majority of persons who have Sclerotherapy will
see good improvement. Unfortunately, there is no
guarantee that sclerotherapy will be effective in
every case. Approximately 10% of patients who
undergo sclerotherapy have poor to fair results.
(“Poor results” means that the veins have not
totally disappeared after six treatments.) In very
rare instances, the patient’s condition may become
worse after sclerotherapy treatment.
HOW MANY TREATMENTS WILL YOU NEED?
The number of treatments needed to clear or improve
the condition differs from patient to patient
depending on the extents of varicose and spider
veins present. Six (6) or more treatments may be
needed. The average is three (3) to four (4)
treatments. However, there is no guarantee that
multiple treatments will clear all veins. While
Sclerotherapy is a safe and highly effective, more
than one treatment is usually required to clear or
improve unsightly veins to a patient’s satisfaction.
A small minority of patients do not improve even
after six treatments. In rare instances the
patient’s condition may worsen after treatment.
WHAT ARE THE MOST COMMON SIDE EFFECTS?
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Itching: Depending upon the type of
solution used, you may experience mild itching along
the vein route. This itching normally lasts one 1 -2
hours but may persist for a day or so. |
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Bruising: Lasts from one to several
weeks. Use of support hose may be recommended and
avoidance of alcohol and anticoagulant medication
for 72 hours prior to each treatment session may
minimize effect. |
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Transient Hyperpigmentation:
Approximately ten percent (10%) of the patients who
undergo sclerotherapy notice a discoloration of
light brown streaks after treatment. In almost every
patient, the veins become darker immediately after
the procedure (but then go away). In rare instances,
this darkening of the vein may persist for 4 -12
months. |
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Pain: A few patients may experience
moderate to severe pain and some bruising, usually
at the site of the injection. The veins may be
tender to the touch after treatment and an
uncomfortable sensation may run along the vein
route. This pain is usually temporary, in most cases
lasting 1 to at most 7 days. |
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Sloughing: Sloughing occurs in less than
one percent (1%) of the patients who receives
Sclerotherapy. Sloughing consists of a small
ulceration at the injection site, which heals slowly
over 1 to 2 months. A blister may form, open and
become ulcerated. The scar that follows should
return to a normal color. This usually represents
injection into or near a small artery and is not
preventable. |
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Allergic Reactions: Very rarely a patient
may have an allergic reaction to the sclerosing
agent used. The risk of an allergic reaction is
greater in patients who have a history of allergies. |
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Blood accumulation in treated vessel:
This may present as a tender bump at a treatment
site. The use of prescribed compression hosiery will
minimize this possibility. (especially when treating
Reticular Veins) |
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Telanglectatic Matting: This term refers
to the development of tiny new blood vessels in the
treated area. This temporary phenomenon occurs 2 to
4 weeks after treatment and usually resolves within
4 to 6 months. It occurs in up to eighteen percent
(18%) of women on estrogen therapy and in two
percent (2%) to four percent (4%) of all patients. |
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Ankle Swelling: Ankle swelling may occur
after treatment of blood vessels in the foot or
ankle. It usually resolves in a few days and is
lessened by wearing the prescribed support
stockings. |
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Phlebitis: Phlebitis is a very rare
complication seen in approximately 1 out of every
one thousand (1,000 patients treated for varicose
veins greater than 3 to 4 millimeters in diameter.
The possible dangers of phlebitis include a
pulmonary embolus or blood clot, which travels to
the lungs and post-phlebitis syndrome, which can
result in permanent swelling of the legs. |
What are the possible complications if I do not
have Sclerotherapy?
In cases of large varicose veins, greater than 3 to
4 mm in diameter, spontaneous phlebitis (infection/
inflammation around the vein) and/or thrombosis
(clotting) may occur with the associated risk of
pulmonary emboli (blood clot in the lungs).
Additionally large skin ulcerations (sores) may
develop in the ankle region of patients with
long-standing varicose veins with underlying venous
insufficiency (poor circulation). Rarely, these
ulcers may bleed or become cancerous.
Are there other procedures to treat varicose
veins and telanglectasias? What are their side
effects?
Because varicose and telanglectatic leg veins are
not life-threatening conditions, treatment is not
mandatory in every patient. Some patents may get
adequate relief of symptoms from wearing graduated
support stockings. Ambulatory Phlebectomy is a
procedure where certain types of veins can be
removed through small surgical incisions. The
complications of this procedure are similar to
Sclerotherapy with the addition of small surgical
scars.
Vein stripping and/or ligation may also be utilized
to treat large varicose veins. This may require a
hospital stay and is performed while the patient is
under general anesthesia. Risks of vein stripping
and/or ligation include permanent nerve paralysis in
up to thirty percent (30%) of patients, possible
pulmonary emboli, infection, and permanent scarring.
General anesthesia has some associated serious
risks, including paralysis, brain damage, and death.
Large veins can also be removed with new lasers (endovenous
laser ablation) which is very successful.
Other types of procedure to treat fine veins/
spider veins/ telangiectasias?
Laser and Filtered Flash-Lamp therapies can be
utilized to treat small spider veins less than 1mm
in size, which are more difficult to treat with
conventional Sclerotherapy injections.
Various types of lasers are used for these ranging
form IPL, Yag, KTP, etc.
Laser treatments are very successful for the very
fine veins and is ideal for areas where
sclerotherapy is too risky (ankles and feet, as well
as facial veins).
New developments in laser technologies has made this
more successful than a few years ago.
What if I experience a problem after receiving
Sclerotherapy?
If you notice any type of adverse reaction, please
call your doctor immediately.
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