Foam sclerotherapy: an overview of use for primary venous insufficiency.

Ultrasound-guided sclerotherapy with foam is able to suppress blood flow in almost all types of varicose veins. The technique is efficient, simple, safe, inexpensive, and easily repeatable, although it requires training and skill. It should be considered as the best primary treatment for most varicose patients. Evaluation of long-term results, with regard to comparison with other techniques, should take into account all advantages and drawbacks and evaluate cost-effectiveness from a life-long point of view.