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Carotid stenoses of ≥50% account for about 15–20% of strokes. Their degree may be moderate (50–69%) or severe (70–99%). Current diagnostic methods include ultrasound, MR‐ or CT‐angiography. Stenosis severity, irregular plaque surface, and presence of microembolic signals detected by transcranial Doppler predict the early recurrence risk, which may be as high as 20%. Initial therapy comprises antiplatelets...
ABSTRACT
BACKGROUNDSeveral studies have reported variable rates of perioperative risk of stroke in individuals with tandem stenoses after carotid endarterectomy. Endovascular treatment of extracranial lesions associated with tandem lesions is limited to case reports and small case series.
METHODSWe retrospectively reviewed clinical records and angiographic findings of 132 symptomatic patients with extracranial atherosclerotic disease who underwent elective stent placement at three tertiary care centers. Tandem stenosis was defined as any lesion with intracranial stenosis ≥50% in the same (but not contiguous) vascular distribution distal to primary extracranial stenosis. The study end point was a composite of any stroke or death within 24 hours, at 1‐ and 6‐month postprocedure. The rates of primary end points were compared between patients with or without secondary tandem stenosis....
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