Pathology - Ischemic Stroke
Pathophysiology A focused neurologic deficit that lasts for at least 24 hours and is brought on by an anomaly in the cerebral circulation is what is known as a stroke. Growing older, having high blood pressure, having high cholesterol, having diabetes, and smoking are risk factors for ischemic stroke. About 87% of strokes are classified as ischemic strokes, which are caused by thrombotic or embolic blockage of cerebral arteries (13% being hemorrhagic strokes). Most often, thrombotic strokes happen at the extremities of tiny vessels that function as end arteries to particular brain regions. Chronic hypertension affects these tiny arteries, which eventually experience degenerative alterations. Aortic arch, carotid, or cardiac emboli can cause emboli in strokes. Ischemia to the brain region that the damaged vessel supplies causes neurologic impairments. Acute hyperreflexia is evident and verifies injury to the higher motor neurons. Muscular atrophy and fasciculations frequently develop over time in stroke-affected regions.
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