[Endovenous mechanochemical ablation for varicose veins--a new endovenous technique without tumescent anaesthesia].

In the past decades, endovenous techniques have played an increasingly important role in the treatment of varicose veins. The method of action of these techniques is based on heat, making tumescent anesthesia necessary. Despite this anesthesia, heat-induced complications such as skin burns, nerve damage and prolonged pain may occur. Endovenous mechanochemical ablation, in contrast, utilises an infusion catheter with a rotating tip. Obliteration of the insufficient vein is achieved both by mechanical destruction to the endothelium and by the fibrosing effect of a sclerosant. Tumescent anaesthesia can be omitted during this ablation technique, which makes it quicker and less painful than other endovenous treatments. This new technique is safe and has shown to be effective in the short term, with high satisfaction rates in treated patients.