Residual Vein Thrombosis Establishes the Optimal Duration of Oral Anticoagulants

Summary

ABSTRACT Background The optimal duration of oral anticoagulant treatment in patients with idiopathic venous thromboembolism is still uncertain . The present study addressed the possible role of the Residual Vein Thrombosis in assessing the need for a prolonged anticoagulation. Methods Patients with a first episode of symptomatic unprovoked or provoked proximal Vein Thrombosis (VT) were given Oral Anticoagulant Treatment (OAT) for 3 months. Residual Vein Thrombosis (RVT), ultrasonographically-detected, will be then assessed. Patients without RVT did not continue OAT, whereas those with RVT will be randomized to either stop or continue OAT for 9 more months. Patients were followed-up prospectively focusing on the study outcomes: occurrence of recurrent venous thromboembolism and major bleeding over a period of at least 12 months after OAT discontinuation.

Timeline

Start

2003-11

Primary completion

—

Completion

2006-09

Publications

• Siragusa S, Malato A, Anastasio R, Cigna V, Milio G, Amato C, Bellisi M, Attanzio MT, Cormaci O, Pellegrino M, Dolce A, Casuccio A, Bajardi G, Mariani G. Residual vein thrombosis to establish duration of anticoagulation after a first episode of deep vein thrombosis: the Duration of Anticoagulation based on Compression UltraSonography (DACUS) study. Blood. 2008 Aug 1;112(3):511-5. doi: 10.1182/blood-2008-01-131656. Epub 2008 May 22.

Drugs

Indications