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Prevalence of Incidental Clinoid Segment Saccular Aneurysms
Francisco Revilla-Pacheco1, María Cecilia Escalante-Seyffert1, Tenoch Herrada-Pineda1
1Department of Neurosurgery, Neurological Center, The American British Cowdray Medical Center, Mexico City, Mexico.
World Neurosurgery
|April 16, 2018
Summary
Clinoid segment aneurysms, a common incidental finding, were found in 3% of patients. These aneurysms are significantly associated with systemic arterial hypertension and smoking.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Radiology
Background:
- Clinoid segment aneurysms are intracranial vascular lesions arising from the internal carotid artery.
- While common incidental findings in MRI, their prevalence and associated factors remain underreported.
Purpose of the Study:
- Determine the prevalence of incidental clinoid segment saccular aneurysms.
- Analyze their anatomical features and association with hypertension, smoking, age, and sex.
Main Methods:
- Prospective study of 500 patients using MRI (time-of-flight and contrast-enhanced angioresonance).
- Focused on clinoid segment aneurysms but also identified aneurysms in other locations.
- Analyzed demographic factors and comorbidities (hypertension, smoking) in relation to aneurysm presence.
Main Results:
- Global incidental aneurysm prevalence was 7%; clinoid segment aneurysms accounted for 3%.
- Statistically significant associations were found between incidental aneurysms and systemic arterial hypertension (P=0.000) and smoking (P=0.004).
Conclusions:
- Incidental clinoid segment aneurysms are the most prevalent type in the studied population.
- Systemic arterial hypertension and smoking are significant risk factors associated with these aneurysms.
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