الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Intracranial aneurysms are acquired dilatation in the cereberal artires that occur at areas of focal weakness in the vessel wall.
UIA have an estimated prevelance of 3.2% in general population. They are more common in females than males with a ratio of 3:1 and tend to be associated with inherited and acquired diseases.
Several factors have been associated with increased rupture risk of UIA including non-modifiable factors (female sex, age above 60 years, and family history of IA), modifiable risk factors (smoking, hypertension and alcohol use) and aneurysm related factors (size, location, AR, SR, presence of a daughter sac or bleb and low WSS).
IAs can be calassifeied according to type (saccular, dissecting or blister), size, location or clinical presentation (UIA or RIA)
IAs may present with non-rupture manfifestations as headache, visual impairment, stroke or CN palsy. RIA are the most common cause of non-traumatic SAH with an incidence of 9 per 100 000 person-years and is associated with high morbidity and mortality. Several complications can occur with SAH including hydrocephalus, rebleeding, vasospasm and DCI. Hence grading scores have been developed to predict outcome and complication rates as HH score, WFNS score, mFs and Vasograde score.
SAH is usually detected on NCCT scan of the brain and vascular imaging is essential for diagnosis of IA. This is done using CTA, MRA or DSA which is the gold standard imaging modality.
Treatment of IA is done either by surgical clipping or endovascular treatment (coiling, SAC, BAC, FD).
The aim of the present work is to study the patterns of IA in a sample of Egyptian population, identify prognostic factors and create a nucleus for registry of all aneurysms.
In this study 88 patients with IA presenting to the department of neurology in Alexandria University hospitals were included.
Exclusion criteria:
Patients with:
Traumatic subarachnoid hemorrhage.
Arterio-venous malformations (AVM).
Cavernous Hemangioms
he following protocol was implemented for all patients:
• Personal data was collected including: age, Gender, Smoking status, alcohol use, History of comorbidities as diabetes mellitus, hypertension, peripheral vascular disease and cardiac disease, Past history of previous SAH, family history of intracranial aneurysms