Superficial vein thrombosis

Patients with uncomplicated superficial vein thrombosis (SVT) should be followed-up until the SVT resolves and for at least 3 months following treatment to assess for complications such as SVT recurrence or subsequent venous thromboembolism.

Patients with concomitant deep vein thrombosis (DVT) or pulmonary embolism should be followed until treatment is finished. An episode of SVT with DVT provoked by a transient risk factor such as pregnancy requires 3 months of anticoagulation, given the low risk of recurrence in the year following stoppage of anticoagulation. Malignancy-induced SVT with DVT will be likely to require indefinite anticoagulation due to the high risk of recurrence (up to 30% in the year following termination of anticoagulation).

Patients with SVT should be assessed for varicose veins. SVT in the absence of varicose veins should prompt evaluation for underlying aetiology, such as malignancy or prothrombotic or inflammatory conditions.