• Athanasios K Petridis, Marcel A Kamp, Jan F Cornelius, Thomas Beez, Kerim Beseoglu, Bernd Turowski, and Hans-Jakob Steiger.
• Department of Neurosurgery, Düsseldorf University Hospital; Department of Diagnostic and Interventional Radiology, Düsseldorf University Hospital; Department of Diagnostic and Interventional Radiology, Düsseldorf University Hospital.
• Dtsch Arztebl Int. 2017 Mar 31; 114 (13): 226-236.

BackgroundAneurysmal subarachnoid hemorrhage (SAH) is associated with a mortality of more than 30%. Only about 30% of patients with SAB recover sufficiently to return to independent living.MethodsThis article is based on a selective review of pertinent literature retrieved by a PubMed search.ResultsAcute, severe headache, typically described as the worst headache of the patient's life, and meningismus are the characteristic manifestations of SAH. Computed tomog raphy (CT) reveals blood in the basal cisterns in the first 12 hours after SAH with approximately 95% sensitivity and specificity. If no blood is seen on CT, a lumbar puncture must be performed to confirm or rule out the diagnosis of SAH. All patients need intensive care so that rebleeding can be avoided and the sequelae of the initial bleed can be minimized. The immediate transfer of patients with acute SAH to a specialized center is crucially important for their outcome. In such centers, cerebral aneurysms can be excluded from the circulation either with an interventional endovascular procedure (coiling) or by microneurosurgery (clipping).ConclusionSAH is a life-threatening condition that requires immediate diagnosis, transfer to a neurovascular center, and treatment without delay.

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