Abstract: ［Abstract］  Objective〖HTSS〗〓To explore the method and curative effect of interventional treatment of iliac vein compression syndrome(IVCS) secondary lower extremity deep vein thrombosis(DVT).
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓A total of 96 cases with iliac vein compression syndrome secondary to the left lower extremity deep vein thrombosis were selected. To clear the diagnosis through the lower limb vein, iliac venous ultrasound and lower extremity venous imaging were used, All patients were accepted catheter contact thrombolysis and percutaneous transluminal angiography. Sixtyseven cases were set into recycled inferior vena cava filter, thirteen cases were accepted pure balloon expansion, 83 cases were accepted balloon expansion combined with stents implantation(iliac vein residual stenosis>50%).
〖HTH〗〖WTHZ〗Results〖HTSS〗〓The lesions were successfully opened in 96 patients. The dosage of urokinase and the time of thrombolysis were(297.6±49.3) million units and(4.9±1.3) d, respectively. At 1 week after operation, the knee circumference was 10 cm and 10 cm below the knee. The radial difference between the uninjured side and the uninjured side was significantly less than that before the treatment(P＜005). The patients were followed up for 6-30 months. DVT recurred in 14 cases during the followup period. There were 1 cases of acute thrombosis in stent. The Villalta score was 5-14 in 14 patients. There was no significant difference in the rate of deep vein patency between balloon dilatation and balloon dilatation with stent implantation 6 months after treatment(P>0.05). The patency rate of deep vein treated by balloon dilatation and balloon dilatation combined with stent implantation in 2 years after treatment was lower than that in 6 months after treatment, the rate of deep vein patency with balloon dilatation and stent implantation is higher than that of simple balloon dilatation(P＜005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓There is no need to stent implantation to the patients with iliac vein severe stricture secondary to the lower extremity deep vein thrombosis. Interventional treatment of IVCS secondary left lower limb DVT has good shortterm and longterm efficacy and high safety. balloon expansion combined with stent implantation is better than that of balloon dilation alone.

Key words: iliac vein compression syndrome, venous thrombosis, angioplasty