67

Subarachnoid hemorrhage, or subarachnoid hemorrhage, is defined as the sudden eruption of blood into the subarachnoid spaces. The purpose of this study is to determine the demographic, clinical, and computed tomography profile of patients with unoperated subarachnoid hemorrhages of aneurysmal origin at the Neurology Training and Research Unit (USFR) of the Joseph Raseta Befelatanana University Hospital (CHUJRB) in Antananarivo, Madagascar. Method: This was a descriptive retrospective study conducted over a period of thirty months from January 1, 2017 to October 30, 2019, on patients hospitalized for unoperated subarachnoid hemorrhages of aneurysmal origin. We included fifty-seven patients, with a female predominance (sex-ratio of 0.46), with a mean age 46.23 years. Homemakers were the most affected group (29.8 percent), and in 53.2 percent of cases, patients lived in urban areas. Patients were known to be hypertensive in 56.25 percent of cases. The main clinical manifestation was sudden headaches occurring upon exertion or at rest (87.50 percent). The intracranial aneurysm was located in the anterior communicating artery in 44.68 percent of cases. Conclusion: This study demonstrates that knowledge of the characteristics of subarachnoid hemorrhages in Madagascar is essential in terms of raising awareness among the general population on how to prevent this pathology.