The therapeutic procedure for varicose veins depends on a number of factors. The diameter of the incompetent great saphenous vein is a key deciding factor in the choice of treatment for trunk varicose veins. A recent observational study by the French Society of Phlebology has shown that almost two-thirds of patients attending phlebology practices for vein problems have a great saphenous vein diameter of less than 6 mm – providing an optimal indication for foam sclerotherapy.
