[Clinical features in post-thrombotic syndrome].

Signs which follow deep vein thrombosis and which develop as a feature of deep venous insufficiency caused by incomplete recanalization and of destruction of valves and endothelium are defined as a postthrombotic syndrome. The clinical symptoms range between no objective signs, severe oedema and ulceration. They depend on the amount of valvular and endothelial damage during the acute phase, localization of the deep vein thrombosis and on several other factors outside the venous macrocirculation which are poorly understood until now.