Are patients with a first symptomatic unprovoked deep vein thrombosis at higher risk of recurrent venous thromboembolism than patients with a first unprovoked pulmonary embolism?
This study has demonstrated that patients with a first episode of unprovoked isolated DVT are 2.1 times more likely to have a recurrent VTE episode than patients with a first episode of unprovoked isolated PE. These findings need to be considered when determining the optimal duration of anticoagulant therapy for patients with unprovoked VTE.
Autoimmune disease may account in part for the increase in NHL, especially in women.