Symptomatic Cervical Carotid Artery Stenosis: Evolving Paradigms in Risk Stratification and Intervention

Ann Indian Acad Neurol. 2025 Jan 1;28(1):1-9. doi: 10.4103/aian.aian_838_24. Epub 2025 Jan 24.

Abstract

Symptomatic carotid disease, characterized by atherosclerotic or non-atherosclerotic internal carotid artery disease with ipsilateral stroke symptoms, represents a critical condition in stroke neurology. This "hot carotid" state carries a high risk of stroke recurrence, with almost one-fourth of the patients experiencing recurrent ischemic events within 2 weeks of initial presentation. The global prevalence of significant carotid stenosis (conventionally defined as ≥50% narrowing) is estimated at around 1.8% in men and 1.2% in women and increases with age. Management of symptomatic carotid disease remains challenging, requiring a balance between urgent medical and surgical interventions and their associated risks. Current treatment approaches combine medical management, focusing on optimal antithrombotic therapy, with revascularization procedures such as carotid endarterectomy or carotid artery stenting. However, decision making has evolved beyond considering stenosis degree alone, now incorporating advanced imaging data on plaque composition and intraluminal characteristics. Even though there are numerous randomized trials, uncertainties persist regarding optimal management, particularly in light of improved medical therapies and emerging concepts like symptomatic non-stenotic carotid disease. Future research directions include exploring newer antithrombotic regimens, refining patient selection criteria for revascularization, and evaluating novel techniques like transcarotid artery revascularization.

Grants and funding

This work was supported by grants to Dr Ganesh from the Alberta Innovates Accelerating Innovations into Care - Concepts (AICE Concepts) program and the Brain Canada Future Leaders in Canadian Brain Research Program. Dr Ganesh has received salary support from the Heart and Stroke Foundation of Canada’s New Investigator Award.