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Published on: June 2, 2015
The ATTRACT trial: rationale for early intervention for iliofemoral DVT
1Jobst Vascular Center, The Toledo Hospital, Toledo, OH 43606, USA. marilyn.gravett@promedica.org
Insights
Catheter-directed thrombolysis may improve outcomes for iliofemoral deep vein thrombosis (DVT) compared to anticoagulation alone. The ATTRACT trial investigates its effectiveness in reducing postthrombotic syndrome over 24 months.
Area of Science:
- Vascular Medicine
- Interventional Cardiology
- Clinical Trials
Background:
- Anticoagulation is the standard for acute deep vein thrombosis (DVT).
- Early thrombus removal in iliofemoral DVT may improve outcomes.
- Limited evidence exists comparing anticoagulation alone versus early thrombus removal.
Purpose of the Study:
- To evaluate the efficacy of catheter-directed thrombolysis plus anticoagulation versus anticoagulation alone for iliofemoral DVT.
- To determine the impact on postthrombotic syndrome incidence and severity.
- To assess effects on venous valve function and quality of life.
Main Methods:
- The ATTRACT trial is a randomized controlled trial.
- Patients with iliofemoral or femoropopliteal DVT were stratified.
- Intervention groups: standard anticoagulation vs. anticoagulation plus catheter-directed thrombolysis.
Main Results:
- Primary outcome: incidence of postthrombotic syndrome at 24 months.
- Secondary outcomes: venous valve function, quality of life, recurrent DVT, bleeding events.
- Data analysis will compare outcomes between the two treatment arms.
Conclusions:
- Findings will inform clinical practice guidelines for DVT management.
- The study aims to establish optimal treatment strategies for iliofemoral DVT.
- Results will guide decisions on early thrombus removal versus anticoagulation alone.
Abstract:
The management of acute deep vein thrombosis (DVT) by medical therapy with anticoagulation has long been supported by evidence-based clinical practice guidelines outlined in the American College of Chest Physicians supplement. Early thrombus removal in patients with iliofemoral DVT has been reported to lead to improved venous valve function, improved quality of life, and decreased incidence of postthrombotic syndrome over anticoagulation alone. The ATTRACT trial will randomize patients to medical management with standard anticoagulation versus catheter-directed thrombolysis in addition to standard anticoagulation after stratification to iliofemoral versus femoropopliteal DVT in order to determine the primary outcome of postthrombotic syndrome over a 24-month follow-up.
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