Placement of filters for lower extremity venous thrombosis is primarily to prevent lethal pulmonary embolism and does not have a curative effect.
The main reason for placing a mesh in lower extremity venous thrombosis is to prevent the thrombus from traveling and causing a fatal pulmonary embolism. In the clinical setting of inferior vena cava thrombosis, filters can prevent most fatal pulmonary embolisms, but they are only preventive and do not treat DVT.
Therefore, after placing the filter, it is necessary to carry out reasonable treatment for lower extremity venous thrombosis, especially the smaller embolus, which may still lead to pulmonary embolism, and it is necessary to use drugs such as rivaroxaban and dabigatran to carry out anticoagulation after placing the filter, and in serious cases, it is possible to carry out catheter thrombolytic surgery, or intravenous urokinase thrombolytic therapy.
Patients with lower extremity venous thrombosis are advised to consult the vascular surgery department of a regular hospital.