Iliac vein compression syndrome: Outcome of endovascular treatment with long-term follow-up

Objective: To retrospectively evaluate technical success and long-term outcome of endovascular treatment in patients with iliofemoral deep vein thrombosis (DVT) due to iliac vein compression syndrome (IVCS). Materials and methods: Between March 2003 and September 2006, 36 consecutive patients (26 women [72%], 10 men, mean age 50 ± 18 years) with acute or chronic iliofemoral deep vein thrombosis due to iliac vein compression syndrome were evaluated for outcome of endovascular treatment. Stent patency was estimated by using the Kaplan-Meier method. Results: Technical success was achieved in 34 of 36 patients (94%). Six patients with acute or subacute thrombosis had chronic occlusion of the left common iliac vein. Rethrombosis of the stents was observed in four patients. Primary and secondary patency rates were 85 and 94% at 1 year, and 80 and 82% at 4 years. Resolution of symptoms was achieved in 17 of 20 patients (85%) with acute and subacute DVT, and 4 of 16 patients (25%) with chronic DVT. Major complication was seen in one patient (3%). Conclusion: Intimal changes in the left common iliac vein are mostly chronic in nature even in patients with acute DVT secondary to IVCS. Endovascular treatment with stent placement has a high technical success rate and good long-term patency in the treatment of acute and chronic DVT due to IVCS. Symptomatic improvement seems to be better in patients with acute than chronic DVT due to IVCS