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  • Title: Catheter-based treatment of the subclavian and innominate arteries.
    Author: Patel SN, White CJ, Collins TJ, Daniel GA, Jenkins JS, Reilly JP, Morris RF, Ramee SR.
    Journal: Catheter Cardiovasc Interv; 2008 Jun 01; 71(7):963-8. PubMed ID: 18383169.
    Abstract:
    OBJECTIVES: We report outcomes in patients undergoing catheter-based intervention for symptomatic subclavian and innominate artery (S/IA) atherosclerosis. BACKGROUND: Symptomatic S/IA obstructive lesions have traditionally been treated with open surgical revascularization. Catheter-based endovascular therapies reduce the morbidity and mortality associated with surgery in many vascular beds. METHODS: Between December 1993 and May 2006, 170 patients underwent primary stent placement in 177 S/IA arteries. Indications for revascularization included arm ischemia (57%), subclavian steal syndrome (37%), coronary-subclavian steal syndrome (21%), and planned coronary bypass surgery with the involved internal mammary artery (8%). RESULTS: Technical success was achieved in 98.3% (174/177) arteries, including 99.4% for stenotic lesions (155/156) and 90.5% for occlusions (19/21). There were no procedure-related deaths and one stroke (0.6%, 1/170). Follow-up was obtained in 151 (89%) patients at 35.2 +/- 30.8 months, with a target vessel revascularization rate of 14.6% (23/157). At last follow-up, 82% (124/151) of all treated patients remained asymptomatic with a primary patency of 83% and a secondary patency of 96%. CONCLUSIONS: Catheter-based revascularization with stents for symptomatic S/IA lesions is safe and effective with excellent patency rates and sustained symptom resolution in the majority (>80%) of patients over 3 years of follow-up. Percutaneous primary stent therapy is the preferred method of revascularization in patients with suitable anatomy.
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