Introduction: Subarachnoid haemorrhage (SAH) is the third most common subtype of stroke. Incidence has decreased over past decades, possibly in part related to lifestyle changes such as smoking cessation and management of hypertension. Aim: The study aims to describe the prevalence of SAH in Ismailia Governorate. Methods: The study was a cross sectional descriptive study conducted on 47 Patients > 18 years old with blood in subarachnoid space on non contrast CT. Results: It was found that 42.6% of cases had aneurysmal SAH and 38.3% of cases had non aneurysmal SAH, while 19.1% died before doing CT or angiography. Most of cases had aneurysmal SAH were male, while in non aneurysmal group gender similarly distributed with statistical significant difference (p=0.023). Age was higher among non aneurysmal group but with statistical insignificant difference. Hypertension and smoking were the common risk factors. Mortality rate was 25.5% among the studied patients. Conclusion: Despite overall improvements in outcome, aneurysmal SAH continues to have a major public health impact with a mean age of onset in the mid-fifties, leading to many years of reduced quality of life. In our study that 42.6% of cases had aneurysmal SAH and 38.3% of cases had non aneurysmal SAH. Hypertension and smoking were the most common risk factors.

Risk factors; SAH, Aneurysmal subarachnoid hemorrhage.