Brain aneurysm symptoms will depend on the status of the aneurysm. It can be considered there are two events. The formation and growth of the aneurysm (aneurism) itself, and then the potential rupture of the aneurysm causing bleeding (subarachnoid hemorrhage).
A subarachnoid hemorrhage commonly occurs following a cerebral artery aneurysm rupture. Bleeding occurs within the space between the inner and middle tissues covering the brain.
The symptoms of the formation and growth of the brain aneurysm are typically not detectable. In some cases the growing aneurysm can create pressure on a nerve or bleed slightly and cause headache, vision problems or facial pain.
Within a certain amount of time (sometimes within minutes of detection of the initial symptoms) the aneurysm may rupture and cause a sudden, severe headache and often a loss of consciousness for some period of time. If consciousness is regained then a series of secondary symptoms often occurs.
Brain aneurysm symptoms:
- vision problems
- facial pain
- severe, sudden headache
- loss of consciousness (sometimes for an extended period of time)
- pulse and respiration abnormalities
Diagnosis of a brain aneurysm is typically with CT scanning and imaging techniques to further identify the aneurysm site. Additional imaging is used in ruptured aneurysms (subarachnoid hemorrhage) to confirm the area for eventual surgical repair, if possible.
Treatment for a non-ruptured aneurysm is typically surgical to stabilize or block off the aneurysm. In individuals who survive the initial subarachnoid hemorrhage from a ruptured aneurysm, emergency surgery is typically performed, if possible, to stop the bleeding and stabilize the rupture.