A cerebral aneurysm is a weakening in the walls of an artery in the brain that over time balloons outward and and fills with blood. An aneurysm may be asymptomatic or it may put pressure on surrounding structures, such as brain tissue or nerves. An aneurysm may also be at risk for rupture, causing internal bleeding known as a intracranial hemorrhage.
To treat aneurysms that are symptomatic or at risk for rupture, surgical clipping or less invasive endovascular embolization can be used. In endovascular embolization a thin catheter is inserted in to artery through an access incision, usually located in the groin area. The catheter is threaded to the site of the aneurysm where a stent like exclusion device is deployed. This illustration depicts a Pipeline Embolization Device. Once the device is in place, the catheter is removed and the device remains in place. A blood clot forms inside the aneurysm and the aneurysm will shrink over time.
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Parent Topic: Cerebral Aneurysm Endovascular Embolization
Topic Media ID: cvml_0461a