Correlation of intracranial atherosclerosis with carotid stenosis in ischemic stroke patients
Manas Ghosh1, Kaushik Ghosh2, Atri Chatterjee3
1Department of Medicine, Murshidabad Medical College, Murshidabad, India.
Insights
Carotid stenosis influences stroke location, with middle cerebral artery strokes more common in affected patients. Other risk factors like hypertension also impact stroke patterns.
Area of Science:
- Neurology
- Vascular Medicine
- Stroke Research
Background:
- Carotid stenosis is a significant risk factor for ischemic stroke.
- The precise impact of carotid stenosis on stroke localization requires further elucidation.
Purpose of the Study:
- To investigate how carotid stenosis affects stroke patterns.
- To examine the interplay between carotid stenosis and other stroke risk factors.
Main Methods:
- Thirty-eight ischemic stroke patients were assessed.
- Carotid Doppler and MRA were used to evaluate carotid and intracranial stenosis.
- Comparison of stroke risk factors between patients with and without carotid stenosis.
Main Results:
- Anterior cerebral artery stenosis was most common in patients without carotid stenosis.
- Middle cerebral artery stenosis was most common in patients with carotid stenosis.
- Middle cerebral artery territory was the most frequent stroke site overall.
- Hypertension, diabetes, and smoking were associated with preferential anterior cerebral artery stenosis.
Conclusions:
- Carotid stenosis shifts the common stroke site to the middle cerebral artery.
- Understanding these patterns aids in stroke risk stratification and prevention strategies.
Introduction:
Carotid stenosis is a major risk factor for ischemic stroke. However, the effect of carotid stenosis on the site of stroke is still under investigation.
Aims:
This study aimed to elucidate how the presence of carotid stenosis influenced the pattern of stroke and also how it interacted with other risk factors for stroke.
Materials And Methods:
Thirty-eight patients with ischemic stroke were included in this study and were investigated with carotid artery Doppler and magnetic resonance angiography for carotid stenosis and intracranial stenosis in the circle of Willis, respectively. Other known risk factors of stroke were also studied in and compared between the subgroups with and without carotid stenosis.
Results:
In patients without carotid stenosis, anterior cerebral artery was the commonest site of stenosis. In patients with carotid stenosis, middle cerebral artery was the commonest site of stenosis. Overall, middle cerebral artery was the commonest territory of stroke. Patients with hypertension, diabetes and history of smoking had preferential stenosis of the anterior cerebral artery.
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