Epidemiological, clinical, and developmental profile of subarachnoid hemorrhage. Experience of the Neurology Department of the Oran University Hospital (2015–2024)

Subarachnoid hemorrhage is an important pathology for several reasons: it affects a population that is most often young and in good health, and its incidence increases with age, particularly in women over 55 years old.This incidence varies greatly depending on the region of the world. The mode of presentation is most often an intense headache with sudden onset, called a thunderclap headache (TCH) when the onset occurs in less than a minute (50% of cases), but it can develop over 1-5 minutes (20% of cases), or even more than 5 minutes (30%). Its prognosis is uncertain and mortality is high, with an unpredictable risk. Any patient admitted to the emergency department for a sudden, severe, and isolated headache must have a nonenhanced brain CT scan, followed by a lumbar puncture if the CT is negative. When the diagnosis of subarachnoid hemorrhage is made, treatment is based on immediate transfer to a specialized unit. The objective of our study is to share our experience in managing subarachnoid hemorrhage at the neurovascular unit of the neurology department of EHU Oran from 2015 to 2024.