[Sclerotherapy of saphenous varicose veins: some technical points]

This article concerns sclerotherapy techniques. It deals with varicosity of the large or samll saphenous veins and their treatment using sclerosing injections in cases where, for various reasons, the decision not to undertake surgery is made. The following points are successively considered: --management of the treatment: from top to bottom, that is, from the proximal to the distal segment of the varicose vein; --the dose of the sclerosing drug utilized and the relation between the amount and the concentration of the injected doses; --the position of the patient and various movements aimed at injecting the solution in a patient when he is lying down, even if the needle is introduced when he is standing up; --the spasm-inducing capacity of certain sclerosing drugs and the possible utilization of provoked veinoconstriction during treatment for better contact between sclerosing drugs and endothelium; --finally, retention with straps: they are put in place immediately after treatment, maintained from 8 to 15 days without interruption, have little or no elasticity and are non-detachable.