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Are cerebral aneurysms atherosclerotic?
J Adamson1, S E Humphries, J R Ostergaard
1Department of Surgery, Charing Cross & Westminster Medical School, London, England.
Stroke
|May 1, 1994
Summary
Smoking and high cholesterol levels significantly increase the risk of ruptured cerebral aneurysms. Genetic factors related to collagen were not found to be a common cause for these dangerous vascular events.
Area of Science:
- Neuroscience
- Cardiovascular Research
- Genetics
Background:
- Cerebral aneurysms pose a significant health risk.
- Identifying risk factors is crucial for prevention and treatment.
Purpose of the Study:
- To investigate plasma and genetic risk factors associated with the rupture of cerebral aneurysms.
Main Methods:
- A case-control study was conducted with patients who experienced ruptured cerebral aneurysms.
- Plasma lipid profiles, apolipoprotein levels, and genetic polymorphisms were analyzed.
- Data from London and Arhus cohorts were combined for comprehensive analysis.
Main Results:
- A history of smoking (over 10 pack years) was strongly associated with increased risk (OR, 9.1).
- Elevated total cholesterol (highest tertile, OR, 10.2) and apolipoprotein B (highest tertile, OR, 6.4) were significant risk factors.
- Low HDL cholesterol (lowest tertile, OR, 3.6) and hypertension (OR, 4.0) also showed associations.
Conclusions:
- An atherosclerotic profile, characterized by high cholesterol and extensive smoking history, contributes to cerebral aneurysm rupture.
- No evidence was found to support inherited type III collagen abnormalities as a common cause of cerebral aneurysms.