GUIDED FOAM INJECTION SCLEROTHERAPY
sclerotherapy is a well known treatment for the management of varicose
veins. The term sclerotherapy arises from a chemical called sclerosant
which is injected into the affected vein, and over a period of time
causes the vein to collapse. This is the result of inflammation in the
vein wall, which in turn destroys the vein making it less noticeable
or even invisible.
way of injecting the sclerosant into the vein is by transforming the
chemical from its liquid form to foam by mixing it up with air. Foam
has various advantages such as requiring less chemical agent, thus making
treatment safer. Also, the properties of the created foam enable much
better contact with the vein wall. The result is that larger segments
of affected veins can be treated with less amount of chemical solution.
has the additional property of being detectable by ultrasound. It spreads
evenly along the course of the affected vein under direct vision with
an ultrasound machine. The use of the ultrasound enables the treating
doctor to identify and minimise any adverse leaking of the foam to the
deep veins, thus protecting the deep veins from this undesirable effect.
usually takes between 20-30 minutes. No anaesthesia is required and
pain in 99% of the cases is completely absent. Return to daily activity
is resumed after a 15min walk. The number of sessions needed depend
upon the extent and the size of the varicose veins.
foam sclerotherapy there may be some itching and discolouration to the
treated site. This should gradually fade. Following treatment you will
be required to wear a compression dressing for around one to two weeks.
could cause in a small percentage of patients complications. Such complications
can be allergy to the injected solution or a reaction that kills the
skin locally. Either of these can cause a small inflamed area, leading
to an ulcer that may rarely then lead to a permanent scar. Such permanent
scars affect less that 1% of patients. Another uncommon complication
is the development of deep vein thrombosis.