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  • Title: Results after balloon angioplasty or stenting of atherosclerotic subclavian artery obstruction.
    Author: Sixt S, Rastan A, Schwarzwälder U, Bürgelin K, Noory E, Schwarz T, Beschorner U, Frank U, Müller C, Hauk M, Leppanen O, Hauswald K, Brantner R, Nazary T, Neumann FJ, Zeller T.
    Journal: Catheter Cardiovasc Interv; 2009 Feb 15; 73(3):395-403. PubMed ID: 19214979.
    Abstract:
    INTRODUCTION: Endovascular therapy is an accepted treatment strategy in occlusive disease of the subclavian artery. The purpose of this study was to evaluate the technical and clinical long-term outcome following either balloon angioplasty (plain balloon angioplasty (PTA)) or stenting. PATIENTS AND METHODS: The authors retrospectively analyzed 108 interventions of atherosclerotic lesions of subclavian arteries or the brachiocephalic trunk (107 patients; mean age of 66 +/- 9 years; 90% symptomatic) representing 92% of the patients treated with subclavian artery obstructive disease during a 10-year period. Primary endpoint of the study was the 1-year primary patency rate. Follow-up was based on oscillometry, Doppler blood pressure measurements, and duplex ultrasound. RESULTS: The primary success rate was 97% (100% for stenoses (78/78) and 87% for total occlusions (26/30)). Treatment modalities included PTA alone (13%; n = 14) or stenting (87%; n = 90) with balloon-expandable (n = 61), self-expanding (n = 17), or both types of devices (n = 12). The 1-year primary patency rate of the 97 patients eligible for follow-up was 88%, for the subgroups 79% (PTA) and 89% (stenting; P = 0.2). The blood pressure difference between both limbs at baseline was 45 +/- 26 mm Hg and dropped to 10 +/- 14 mm Hg (P < 0.001) after the intervention and 15 +/- 19 mm Hg at 1 year (P < 0.01). CONCLUSION: Endovascular therapy of atherosclerotic subclavian artery obstructions result in excellent acute success rates even in total occlusions. Results evince good durability of endovascular therapy for atherosclerotic occlusive disease of subclavian arteries and with a trend towards better outcome with stenting compared to PTA.
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