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Cerebral Aneurysm
Lake County Neurosurgery team neurosurgeons have advanced training and experience in the management of cerebral aneurysms. An aneurysm's risk of rupture is a key factor in planning care. A rupture can lead to bleeding into the brain tissue or surrounding lining of the brain (hemorrhage), serious complications and death.A cerebral aneurysm is an abnormal bulge or ballooning in a blood vessel supplying the cerebrum (brain). The weakened area forms a sac that fills with blood.
Aneurysms can rupture and cause bleeding in the area between the brain and the surrounding membrane called the arachnoid. The space between the brain and the surrounding membrane is called the subarachnoid space, and bleeding into this space is called a subarachnoid hemorrhage. Most aneurysms under 1/4 inches in diameter do not rupture. However, aneurysms that do rupture can lead to stroke and death. A ruptured aneurysm often causes a severe headache known as a "thunderclap" headache because it comes on so suddenly. Other symptoms can include nausea, vomiting, vision changes, numbness, weakness, speech impairment, and seizures. Approximately 20,000 people in the United States suffer a subarachnoid hemorrhage each year.
Most people never realize they have a cerebral aneurysm until it hemorrhages. However, some larger aneurysms can press on other areas of the brain, producing double vision, loss of vision, headache, seizures, and eye or neck pain.
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