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Management of the near total internal carotid artery occlusion
A D Giannoukas1, N Labropoulos, F C T Smith
1Sheffield Vascular Institute, Northern General Hospital, Sheffield, UK. agiannoukas@hotmail.com
Insights
Management of near total internal carotid artery (ICA) occlusion is controversial. Current evidence suggests surgery may be preferred, but further studies are needed to confirm its benefit over medical treatment for stroke prevention.
Area of Science:
- Neurology
- Vascular Surgery
- Cardiology
Background:
- Near total internal carotid artery (ICA) occlusion poses a significant stroke risk, increasing with stenosis severity.
- Current management strategies for this condition are debated, lacking specific guidance from randomized trials.
Purpose of the Study:
- To review the existing literature on the management of near total internal carotid artery (ICA) occlusion.
- To address the controversy surrounding intervention versus best medical treatment for patients with near total ICA occlusion.
Main Methods:
- Systematic review of relevant scientific literature.
Main Results:
- Management of near total ICA occlusion remains controversial, with differing opinions on the benefits and risks of intervention.
- A large-scale prospective randomized trial comparing intervention to best medical treatment is challenging due to patient numbers required.
- Despite controversy, current evidence makes it difficult to definitively reject surgical intervention.
Conclusions:
- Prospective observational studies are necessary to determine the prevalence of near total ICA occlusion in symptomatic and asymptomatic individuals and associated stroke risks.
- While surgery is favored in many centers, its superiority over best medical treatment for near total ICA occlusion requires further validation.
Objectives:
The risk of stroke in patients with near total internal carotid artery (ICA) occlusion is perceived to be high as stroke risk increases with severity of the stenosis. The management of this entity has not been addressed specifically in the existing randomised trials and thus it remains controversial.
Methods:
Systematic review of the relevant literature.
Results:
The management of patients with near total ICA occlusion remains controversial: some favour intervention whereas others have condemned it as dangerous or of no benefit. A prospective multicentre randomised trial regarding intervention versus best medical treatment for patients with symptomatic near total ICA occlusion seems difficult because of the large number of patients required to power the study. Nevertheless, it appears hard to decline surgery based on the current evidence.
Conclusions:
Because of the current controversy over the best management of the near total ICA occlusion, prospective observational studies are needed to demonstrate its prevalence in the symptomatic and asymptomatic population and any associated excess stroke risk. Based on the current evidence, surgery is the treatment of choice in most centres but its validity over best medical treatment remains untested.
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