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Brain Aneurysm (cont.)

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What are the signs and symptoms of brain aneurysm?

The headache associated with a leaking aneurysm is severe. Blood is very irritating to the brain and causes significant pain. Patients may describe the "worst headache of their life," and the health care practitioner needs to have an appreciation that a brain aneurysm may be the potential cause of this type of pain. The headache may be associated with nausea, vomiting, and change in vision. A subarachnoid hemorrhage also causes pain and stiffness of the neck. However, the "worst headache of their life" complaint needs to be matched with physical findings to be considered a risk factor for a leaking aneurysm.

How is brain aneurysm diagnosed?

The diagnosis of brain aneurysm begins with a high index of suspicion by the health care practitioner. The history of the headache, an acute onset of the headache, associated with a stiff neck and an ill-appearing patient on physical examination, typically lead the health care practitioner to order a CT (computerized tomography) scan of the head. This will show a subarachnoid hemorrhage in more than 90% of cases of leaking aneurysm. In the few cases that are not recognized by CT, the health care practitioner may consider performing a lumbar puncture (LP, or spinal tap) to identify blood in the cerebrospinal fluid that runs in the subarachnoid space.

If the CT or the LP reveals the presence of blood, angiography is performed to identify where the aneurysm is located and to plan treatment. Angiography (angio=artery +graphy= picture) is a procedure where a small flexible tube is threaded into one of the brain's arteries, and dye is injected while pictures are taken. Newer technology allows angiography to be done in association with CT or magnetic resonance imaging (MRI), but the MRI does not allow treatment to occur.

Though the symptoms may suggest a brain aneurysm, other diagnoses may need to be considered. Migraine headache, meningitis, tumor, and stroke all may cause neurologic symptoms. Based on the patient's presentation, the health care practitioner will need to decide which tests and studies to use to establish the correct diagnosis.

Medically Reviewed by a Doctor on 3/25/2014

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Source: MedicineNet.com
http://www.medicinenet.com/brain_aneurysm/article.htm

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