Subarachnoid hemorrhage can be diagnosed with a CT scan. Early treatment could result in complete recovery of the patient. Subarachnoid hemorrhage causes headache as one of its earliest signs.

Computed tomography (CT) of the head without contrast enhancement showed diffuse subarachnoid hemorrhage and enlargement ... leading to early effects such as intracranial pressure elevation ...

Lancet 1994;344:590-3 7. Van der Wee N, Rinkel GE, Hasan D, van Gijn J. Detection of subarachnoid haemorrhage on early CT: is lumbar puncture still needed after a negative scan? J Neurol Neurosurg ...

Subarachnoid Hemorrhage - Sentinel Bleed. Axial CT scans without contrast ... They lie unsupported in the subarachnoid space. The early precursors of aneurysms are small outpouchings through defects ...

Subarachnoid Hemorrhage - Basilar Artery Aneurysm. Axial CT scans without contrast ... They lie unsupported in the subarachnoid space. The early precursors of aneurysms are small outpouchings through ...

Patients who experience a nonaneurysmal subarachnoid ... subarachnoid hemorrhage in initial presentation (including neurological examination and computed tomography [CT] scans), clinical course ...

Urgent investigation is required to confirm a diagnosis of subarachnoid haemorrhage and facilitate early treatment to prevent rebleeding ... There is good evidence showing that non-contrast CT head ...

Guidelines recommend that CT scans be carried out within one hour of arrival in hospital in patients suspected of having a subarachnoid haemorrhage (Bederson et ... physician increases patients’ ...

First, a doctor may conduct a CT scan of ... within the brain. Early detection and, in some cases, treatment of a brain aneurysm can prevent a subsequent hemorrhage in the subarachnoid space.

Headaches are common and account for 2% of visits to the emergency department.1 Subarachnoid hemorrhage, often from a bleeding cerebral aneurysm, causes 1% of headaches seen in emergency departments ...