الفهرس 
Introduction
Management of rebleedingOnly 14 pages are availabe for public view
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Abstract
?The present study include 50 patients with SAH diagnosed by CT scanning and lumber puncture in CT negative cases . The incidence of SAH in our locality is 3.8% of all strokes and, representing about 12.4% of haemorrhagic strokes. The rate of SAH is highest in the sixth decade of life and, is more common in females than males. Hypertension, dyslipidemia,diabetes,and cigerrate smoking are the main risk factors in this study. Other risk factors including; hyperuricemia,drug abuse, collagen disorder, and bleeding diathesis. SAH is more common during morning and afternoon periods while it shows reduced risk during night hours. 30 day casefatility is 46% , the majority of them in the first week after admission due to rebleeding and the effect of this initial haemorrhage . 48% of patients presented by sudden , severe headache , nuchal rigidity and cranial nerve palsy , while 24% presented by stuporous consciosness and severe hemiplegia , and only 6 % with deep coma . CT brain scan is sensitive in 98% of cases in detecting SAH in acute stage making it the first line in investigations. MRI FLAIR is superior than CT in detecting SAH in subacute phase where the patient come after the onset by one or two weeks . FourVessels angiography more sensitive in detecting intracranial aneurysms in comparison to MRA.