Relation Between Severity of Asymptomatic Carotid Stenosis and Stroke Risk

An observational study shows a graded relation between asymptomatic ICA stenosis severity and stroke risk.

For patients with symptomatic carotid stenosis, trials have convincingly shown a relation between severity of internal carotid artery (ICA) stenosis and risk for stroke. Such an association has been less certain for asymptomatic ICA stenosis. These authors analyzed data from the Oxford Vascular Study, a population-based study of patients with transient ischemic attack (TIA) or stroke. Patients with asymptomatic ICA stenosis were identified and subsequently assessed for development of ipsilateral TIA or stroke. Of 2354 patients enrolled during the study period, 92% underwent carotid imaging (73% ultrasound and 27% magnetic resonance angiography).

In the 2178 patients with carotid imaging results, 97% had vascular risk factors. Asymptomatic IC…

Reviewing Author

Seemant Chaturvedi, MD

Disclosures

Consultant/Advisory BoardBayer Pharmaceuticals; Novartis

Grant/Research SupportNational Institute of Neurological Disorders and Stroke

Editorial BoardsNeurology; Stroke

Seemant Chaturvedi, MD

Disclosures

Consultant/Advisory BoardBayer Pharmaceuticals; Novartis

Grant/Research SupportNational Institute of Neurological Disorders and Stroke

Editorial BoardsNeurology; Stroke

Relation Between Severity of Asymptomatic Carotid Stenosis and Stroke Risk

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Reviewing Author