A cerebral ischemic stroke from dissection is caused when an artery in the brain is blocked or narrowed by a tear in the wall of the artery. This can be caused by trauma, such as a blow to the head, or it can occur spontaneously due to a genetic or environmental factor.
Diagnosis is typically made through imaging studies, such as a CT scan or MRI. These imaging tests can identify the location and size of the dissection.
Differential diagnosis includes other causes of stroke, such as thrombotic stroke, embolic stroke, and hemorrhagic stroke.
Treatment of a cerebral ischemic stroke from dissection typically includes the use of anticoagulants or antiplatelet agents to reduce the risk of further clotting. Surgery may also be necessary to repair the tear in the artery wall.
The prognosis for a cerebral ischemic stroke from dissection depends on the size and location of the dissection, as well as the promptness of treatment. Generally, patients who receive prompt treatment have a good prognosis.