Overview

This study is a prospective, multicenter, real world, observational study intended to understand tmechanical thrombectomy in the treatment of acute deep venous thrombosis of lower extremities, It is estimated that 600 patients with DVT were enrolled in the group at 24 centers nationwide from May 2022 to May2024. we can obtain data on the incidence of sequelae of deep venous thrombosis after PMT, and analyze the factors that may affect the efficacy of PMT.

Eligibility

Inclusion Criteria:

1. The symptoms of deep venous thrombosis of lower extremities occurred within 14 days (including 14 days)；
2. Lower extremity deep venous thrombosis involving iliac vein or / and femoral vein ;
3. Obtain the informed consent of all patients.

Exclusion Criteria:

1. Patients with a previous history of ipsilateral proximal lower limb deep venous thrombosis ;
2. patients who are prohibited from thrombolytic therapy;
3. inferior vena cava compression syndrome；
4. Allergic to heparin, low molecular weight heparin or contrast medium;
5. Patients who have participated in clinical trials of other drugs or medical devices that interfere with this clinical trial in the past 3 months;
6. Patients who do not want to participate in this trial;
7. Patients with poor compliance, or those who the researchers think are not suitable for selection.