PMC4147573_01
DSA showing a good collateral circulation developed after occlusion of the left subclavian artery with reinjection in the distal part of the subclavian artery.
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Digital subtraction angiography (DSA) confirmed total occlusion of the left subclavian artery, starting after the origin of the left vertebral artery, with good collateral circulation but with slow arterial flow to the left arm (Fig. 1).
DSA showing thrombosis of the CSB and occlusion of the stent. Reinjection by a diffuse collateral circulation occurs in the third part of the axillary artery.
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DSA showed occlusion of the stent in the subclavian artery and the already known thrombosis of the carotid-subclavian bypass (Fig. 2).