Mid-term Efficacy Evaluation Of Endovascular Stenting For Subclavian Artery Stenosis Or Occlusion

ObjectiveTo evaluate the mid-term efficacy of endovascular stenting for subclavian artery stenosis or occlusion.MethodThirty-one patients with stenosis or occlusion in subclavian arteries were diagnosed by color Doppler ultrasound and CTA.. There were 18 stenotic lesions in 19 vessels, and 13 total occlusions in 13 vessels. Endovascular stents were performed after guidewire recanalizing obstruction. All stents implanted were followed-up by CDU,and inquired whether the system recur.ResultFour patiens were failed in recanaliztion.28 stents were successfully installed in 27 patients (28 vessels).The symptoms improved in 27 patients with the stenting arteries patency. Twelve of fourteen patients with subclavian steal sign disappeared instantly after procedures.We followed-up 27 patients from 6 months to 62 months (mean 24.0±16.5 months). Restenosis occurred in 3 patients:1 patient occurred restenosis 9 months after PTA, the artery remained patency 12 months after angioplasty; 1 patient 10 months, the artery remained patency 8 months after angioplasty; 1 patient occurred restenosis 12 months, and further undergone surgery.1 patient with arteritis died of brain hemorrhage at 8th month; 1 patient died of cerbral infarction at 14th month. The other patients were free-symptom under follow-up and kept vascular patency by Dopplor examination.ConclusionEndovascular stenting is effective and safe in the treatment of subclavian artery stenosis or occlusion and has a better mid-term patency.