This trial is a prospective, multicenter, randomized controlled, superiority study. According to the inclusion and exclusion criteria for clinical research subjects, 104 patients with acute deep vein thrombosis involving the iliac and femoral veins were recruited. Qualified subjects were randomly (1:1) assigned to either the experimental group or the control group. The experimental group received thrombus aspiration, with or without balloon dilation, stent implantation, and other accompanying surgical treatments, combined with standard anticoagulant therapy, while the control group received only standard anticoagulant therapy. The efficacy and safety of the experimental group in treating acute iliac and femoral vein thrombosis were compared. The main efficacy endpoint of this study is the 24 month postoperative composite endpoint, with the following hierarchical order: 1. in-hospital mortality or treatment upgrade; 2. Recurrent venous thrombosis or newly developed pulmonary embolism of the target lesion within 24 months; 3. Severity of Villalta score at 24 months; 4. Change in VEINES score after 24 months. Simultaneously observe other secondary efficacy endpoints and safety endpoints. Clinical follow-up was conducted before discharge, 30 days after surgery, 6 months after surgery, 12 months after surgery, and 24 months after surgery.
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Postoperative hierarchical composite endpoint at 24 months.
Timeframe: 24-month post-operation