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Updated: Jun 29, 2025
Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Management of carotid atherosclerosis in stroke
Nicholas Richard Evans1, Shiv Bhakta2, Mohammed M Chowdhury3
1Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK ne214@cam.ac.uk.
Insights
Internal carotid artery atherosclerosis significantly increases stroke risk. Revascularization benefits patients with severe stenosis, but medical therapies are evolving, impacting treatment decisions for symptomatic and asymptomatic disease.
Area of Science:
- Neurology
- Vascular Surgery
- Cardiology
Background:
- Internal carotid artery atherosclerosis is a primary cause of ischemic stroke.
- Revascularization procedures are indicated for significant carotid stenosis (>50%).
- Medical pharmacotherapy advances influence surgical treatment benefits.
Purpose of the Study:
- Review current medical and surgical management of symptomatic carotid atherosclerosis.
- Evaluate the impact of evolving pharmacotherapy on revascularization benefits.
- Discuss the role of non-stenotic, high-risk plaques in stroke etiology.
Main Methods:
- Literature review of current evidence.
- Analysis of therapeutic strategies for carotid atherosclerosis.
- Discussion of clinical implications beyond luminal stenosis.
Main Results:
- Revascularization effectively reduces stroke risk in severe carotid stenosis (70-99%).
- Medical management plays a crucial role, influencing the necessity and timing of interventions.
- Non-stenotic plaque characteristics are increasingly recognized as stroke predictors.
Conclusions:
- Optimal management requires integrating medical and surgical approaches.
- Patient selection for revascularization must consider factors beyond stenosis degree.
- Understanding high-risk plaque features is vital for stroke prevention strategies.
Abstract:
Internal carotid artery atherosclerosis is a major risk factor for stroke, accounting for 15-20% of ischaemic strokes. Revascularisation procedures-either carotid endarterectomy or carotid artery stenting-can reduce the risk of stroke for those with significant (>50%) luminal stenosis but particularly for those with more severe (70-99%) stenosis. However, advances in medical pharmacotherapy have implications for the relative benefit from surgery for symptomatic carotid atherosclerosis, as well as our approach to asymptomatic disease. This review considers the evidence underpinning the current medical and surgical management of symptomatic carotid atherosclerosis, the importance of factors beyond the degree of luminal stenosis, and developments in therapeutic strategies. We also discuss the importance of non-stenotic but high-risk carotid atherosclerotic plaques on the cause of stroke, and their implications for clinical practice.
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