Intracranial aneurysm
An intracranial aneurysm, also known as a cerebral aneurysm, is a cerebrovascular disorder in which weakness in the wall of a cerebral artery or vein causes a localized dilation or ballooning of the blood vessel.
| Intracranial aneurysm | |
|---|---|
| Other names | Cerebral aneurysm, brain aneurysm |
| Aneurysm of the basilar artery and the vertebral arteries | |
| Specialty | Interventional neuroradiology, neurosurgery, neurology |
| Symptoms | None, severe headache, visual problems, nausea and vomiting, confusion |
| Usual onset | 30–60 years old |
| Causes | Hypertension, infection, head trauma |
| Risk factors | old age, family history, smoking, alcoholism, cocaine use |
| Diagnostic method | Angiography, CT scan |
| Treatment | Endovascular coiling, surgical clipping, cerebral bypass surgery, pipeline embolization |
Aneurysms in the posterior circulation (basilar artery, vertebral arteries and posterior communicating artery) have a higher risk of rupture. Basilar artery aneurysms represent only 3–5% of all intracranial aneurysms but are the most common aneurysms in the posterior circulation.
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