Safety of Endovascular Treatment of Chronic Cerebrospinal Venous Insufficiency: A Report of 240 Patients with Multiple Sclerosis

Published:November 15, 2011DOI:



      To evaluate the safety of outpatient endovascular treatment in patients with multiple sclerosis (MS) and chronic cerebrospinal venous insufficiency (CCSVI).

      Materials and Methods

      A retrospective analysis was performed to assess complications occurring within 30 days of endovascular treatment of CCSVI. The study population comprised 240 patients; 257 procedures were performed over 8 months. The indication for treatment in all patients was symptomatic MS. Of the procedures, 49.0% (126 of 257) were performed in a hospital, and 51.0% (131 of 257) were performed in the office. Primary procedures accounted for 93.0% (239 of 257) of procedures, and repeat interventions accounted for 7% (18 of 257). For patients treated primarily, 87% (208 of 239) had angioplasty, and 11% (26 of 239) had stent placement; 5 patients were not treated. Of patients with restenosis, 50% (9 of 18) had angioplasty, and 50% (9 of 18) had stent placement.


      After the procedure, all but three patients were discharged within 3 hours. Headache after the procedure was reported in 8.2% (21 of 257) of patients; headache persisted > 30 days in 1 patient. Neck pain was reported in 15.6% (40 of 257); 52.5% (21 of 40) of these patients underwent stent placement. Three patients experienced venous thrombosis requiring retreatment within 30 days. Sustained intraprocedural arrhythmias were observed in three patients, and two required hospital admission. One of these patients, who was being retreated for stent thrombosis, was hospitalized because of a stress-induced cardiomyopathy.


      Endovascular treatment of CCSVI is a safe procedure; there is a 1.6% risk of major complications. Cardiac monitoring is essential to detect intraprocedural arrhythmias. Ultrasonography after the procedure is recommended to confirm venous patency and to identify patients experiencing acute venous thrombosis.


      CCSVI (chronic cerebrospinal venous insufficiency), MS (multiple sclerosis)
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