HSS 3105 Lecture Notes - Lecture 14: Transient Ischemic Attack, Stroke, Case Fatality Rate
22 Nov 2018
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Document Summary
Surgical therapies are rarely available in low-income countries. Health education can help people become aware of their risk factors, adopt and sustain healthier behaviors, and access the medications they need to lower the risk of a heart attack. Cerebrovascular disease is characterized by reduced blood flow to the brain. A stroke happens when cells in the brain to die due to lack of oxygen. The typical symptoms of a stroke include weakness on one or both sides of the face and body, confusion, trouble speaking (expressive aphasia) or understanding language (receptive aphasia), vision disturbances, a loss of balance, and a severe headache. There are two common pathologic processes that cause strokes: ischemia and hemorrhage. A hemorrhagic stroke occurs when a blood vessel ruptures and causes bleeding in the brain: there is a higher case fatality rate for hemorrhagic strokes than for ischemic strokes. The relative burden from ihd (such as heart attacks) attacks and strokes varies by country.
