[Postthrombotic syndome-a complex clinical picture].

Postthrombotic syndrome (PTS), which comprises a range of symptoms and signs following the development of deep vein thrombosis, is associated with varied clinical presentation. The functional limitations associated with PTS may be persistent, and following deep vein thrombosis, the patient may require lifelong anticoagulation. Venous ulceration is often regarded as a complication of PTS. However, the development of venous ulceration strictly depends on underlying venous hypertension, which is not always present. Due to the heterogenous clinical presentation of PTS, diagnosis may be difficult. Nevertheless, accurate diagnosis is vital and modern imaging techniques can help establish the diagnosis and play a role in monitoring treatment response. Thus, in addition to new strategies in compression therapy, (endo)vascular interventions are established treatment modalities in the management of PTS.