Subrachnoid Haemorrhage (SAH)

Opening of the article

Subrachnoid haemorrhage (SAH) is bleeding within the cerebrospinal fluid-filled spaces surrounding the brain which occurs most commonly due to trauma, rupture of intracranial aneurysms is the most common cause of non-traumatic SAH. SAH is always an emergency because untreated ruptured cerebral aneuryms have a bad prognosis. The outcome in these patients can be improved significantly by early treatment. Rebleed due to rerupture of aneurysm is a very important factor, which makes early treatment all the more important. Although, aneurysms have been treated traditionally surgical techniques, minimally invasive method such as endovascular coil embolization is feasible in most of these patients.