Key result
Carotid artery occlusion was associated with a 77% 5-year survival rate compared to an expected 85% in a matched normal population, and a stroke rate eight times the expected rate.
Why the study?
What is the long-term prognosis (survival and stroke rate) in patients with angiographically proved carotid artery occlusion and minimal or no neurologic deficit compared to a matched normal population?
Population
138 patients with angiographically proved carotid artery occlusion and minimal or no neurologic deficit
Design
Cohort
Follow-up
average of 5 years
Authors
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Supports closer surveillance in asymptomatic carotid occlusion; extends natural history data but leaves optimal management unresolved.
Cohort (n=138)
What is the long-term prognosis (survival and stroke rate) in patients with angiographically proved carotid artery occlusion and minimal or no neurologic deficit compared to a matched normal population?
Absolute Event Rate: 77% vs 85%
Patients with asymptomatic or minimally symptomatic carotid artery occlusion have a significantly higher long-term risk of stroke and slightly reduced survival compared to the general population.
Furlan et al. (1980) conducted a cohort in Carotid artery occlusion (n=138). Carotid artery occlusion vs. Matched normal population was evaluated on 5-year survival rate. Carotid artery occlusion was associated with a 77% 5-year survival rate compared to an expected 85% in a matched normal population, and a stroke rate eight times the expected rate.
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