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Cerebral Aneurysms
Associated with Hernia, Peripheral Aneurysm
1 in 50 in US Population
1% of population at autopsy
At or Near Circle of Willis
At Arterial Junctions
Types of Aneurysms
Saccular—”Berry” Most Frequent
Fusiform –Usually do Not Rupture
Charco-Bouchard –Usually <15mm –Hypertension- Usually Slow Bleed
Giant Aneurysm > 2.5 cm Always Risk for Sudden Death or Hemorrhagic Stroke
Aneurysm Risk Factors
Marfan Syndrome
Polycystic kidney Disease
Neurofibromatosis
Hereditary Telangectasia
Ehlers – Danlos Type II and IV
CAUSES of Aneurysm
Genetic Tendency
Weakness of Connective Tissue
High Blood Pressure
Mycosis, Infection, Trauma
Drug Abuse—Cocaine, Amphetamines
SIGNS AND SYMPTOMS
Headache
Nausea- Vomiting
Confusion
Visual Disturbance
Focal Facial Numbness
Meningismus
Focal Neural Defecit
Sudden Coma
Treatment Options
Observation if Diagnosed But No Symptoms
Endovascular Embolization or Coil
Craniotomy For Clipping
Results With Rupture
40% Mortality Rate
15% Die Before Reaching Hospital
Female > Male For Rupture
Once Aneurysm Ruptures >60% Have Permanent Neurologic Deficits
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