[Regression of deep venous thrombosis]

Area of Science:

• Vascular Medicine
• Thrombosis Research
• Clinical Outcomes

Background:

• Deep venous thrombosis (DVT) affects lower extremities, posing risks of pulmonary embolism and post-thrombotic syndrome.
• Understanding DVT regression patterns is crucial for optimizing patient management and long-term prognosis.
• Current treatment focuses on anticoagulation, but the natural course of thrombus resolution requires further investigation.

Purpose of the Study:

• To evaluate the rate and pattern of deep venous thrombosis (DVT) regression over a six-month outpatient follow-up period.
• To assess the effectiveness of anticoagulant therapy in preventing DVT progression in the early stages.
• To identify factors influencing DVT recanalization, such as patient age.

Main Methods:

• Prospective randomized study design.
• Inclusion of patients diagnosed with lower extremity deep venous thrombosis (DVT).
• Six-month outpatient follow-up with regular assessments of thrombosis status.

Main Results:

• No complete DVT resolution was observed at hospital discharge (5-10 days post-diagnosis).
• DVT progression occurred in 2 patients despite anticoagulant therapy.
• Six-month recanalization rates were 4.8% at 3 months and 33.3% at 6 months.
• Recanalization patterns varied: distal-proximal (33.3%), proximal-distal (19%), and throughout (33.3%).
• Patients under 50 years of age showed significantly faster DVT recanalization.

Conclusions:

• Deep venous thrombosis (DVT) regression is a slow process, with limited recanalization in the initial months of treatment.
• Anticoagulant therapy may not prevent early DVT progression in all cases.
• Age is a significant factor influencing the rate of DVT recanalization, with younger individuals experiencing more rapid resolution.