Why the study?
Carotid plaque vulnerability is clinically evaluated solely by luminal stenosis, leaving the hemodynamic mechanisms driving the transition from asymptomatic to symptomatic plaque unknown.
Are elevated hemodynamic parameters such as wall shear stress associated with recent cerebrovascular ischemic events in patients with carotid artery stenosis ≥50%?
Population
25 patients (26 carotid plaques) with carotid artery stenosis ≥50%
Comparison
Recently symptomatic vs asymptomatic carotid stenosis
Design
Hemodynamic simulation study using 3D computed tomography angiography reconstruction
Authors
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Elevated WSS was associated with symptomatic carotid stenosis; leaves open whether hemodynamic assessment refines risk stratification beyond stenosis severity.
Are elevated hemodynamic parameters such as wall shear stress associated with recent cerebrovascular ischemic events in patients with carotid artery stenosis ≥50%?
Elevated wall shear stress is associated with recent ischemic symptoms in patients with carotid stenosis, suggesting that hemodynamic assessment may improve risk stratification beyond luminal stenosis severity alone.
Zhang et al. (2022) studied this question.
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