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Risk factors and concomitants of internal carotid artery occlusion or stenosis. A controlled study of 159 cases
Insights
Risk factors like smoking and high blood pressure are more common in patients with internal carotid artery (ICA) disease. These findings suggest atherosclerosis precursors contribute to ICA disease progression.
Area of Science:
- Vascular Medicine
- Neurology
- Cardiology
Background:
- Internal carotid artery (ICA) disease, including occlusion and stenosis, poses significant risks for cerebrovascular events.
- Understanding the risk factors associated with ICA disease is crucial for prevention and management strategies.
Purpose of the Study:
- To investigate and compare the risk factors present in patients with internal carotid artery (ICA) occlusion or stenosis.
- To explore the relationship between identified risk factors and the progression of atherosclerosis in the ICA.
Main Methods:
- A case-control study involving 159 patients with ICA disease and 159 matched controls.
- Comparison of risk factors including smoking, family history of strokes, electrocardiogram findings, obesity, blood pressure, and plasma glucose levels.
- Further comparison with a cohort of patients suffering from coronary artery disease without carotid involvement.
Main Results:
- Patients with ICA disease exhibited higher frequencies of smoking, family history of strokes, ischemic electrocardiogram changes, and obesity compared to controls.
- Elevated blood pressure and plasma glucose levels were observed in patients with ICA disease.
- Patients with ICA occlusion showed higher blood pressure, plasma glucose, and smoking prevalence than those with stenosis.
- Diabetes was more prevalent in ICA occlusion, and family history correlated with the site of atherosclerosis (carotid vs. coronary).
Conclusions:
- Risk factors associated with atherosclerosis appear to play a role in the progression of internal carotid artery disease.
- Constitutional factors may be key differentiators between carotid and coronary artery disease.
- Identifying and managing these risk factors is essential for mitigating the progression of ICA disease.
Abstract:
Presumed risk factors were studied in 159 patients with internal carotid artery (ICA) occlusion or stenosis. Smoking, family history of strokes, ischemic changes on electrocardiogram, and obesity were more frequent and blood pressure and plasma glucose levels were higher than in 159 sex- and age-matched controls. Blood pressure and plasma glucose levels were higher and smoking was more frequent in patients with occlusion than in those with stenosis. These points suggest that progression is related to some of the precursors of atherosclerosis. No difference was found between the patients with ICA disease and an age- and sex-matched group who had coronary disease without carotid disease, except for diabetes, which was more frequent in ICA occlusion, and for family history, which corresponded to the site of atherosclerosis (carotid vs coronary). The constitutional basis may be the most important differential risk factor in ICA vs coronary disease.