How the inflamed brain becomes disconnected after a stroke
Whether reeling from a sudden stroke or buckling under the sustained assault of Alzheimer's, the brain becomes inflamed, leading to cognitive problems and even death.
Apr 12, 2024
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Whether reeling from a sudden stroke or buckling under the sustained assault of Alzheimer's, the brain becomes inflamed, leading to cognitive problems and even death.
Apr 12, 2024
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54
A team of researchers affiliated with several institutions in Sweden, Finland and Denmark has found evidence that suggests babies born to mothers with preeclampsia have an increased risk of a stroke and/or heart disease later ...
The lifetime risk of atrial fibrillation (a heart condition that causes an irregular and often abnormally fast heart rate) has increased from one in four to one in three over the past two decades, finds a study from Denmark ...
17 hours ago
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Thrombolytic therapy administered longer after the onset of ischemic stroke than current recommendations did not demonstrate improved clinical outcomes as compared to placebo, according to a recent trial published in the ...
Mar 8, 2024
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More than 80% of stroke survivors experience walking difficulty, significantly impacting their daily lives, independence, and overall quality of life. Now, new research from the University of Massachusetts Amherst pushes ...
Mar 4, 2024
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Multiple sclerosis (MS) is the result of the immune system mistakenly attacking the brain and the spinal cord, causing tissue damage (lesions) throughout. While the underlying mechanism of lesion formation is still not entirely ...
Feb 26, 2024
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Blood vessels that cross-connect adjacent arterial trees regulate blood flow to the brain in stroke patients. Researchers at the University of Zurich have now shown that these vessels prevent brain hemorrhage following treatment ...
Feb 26, 2024
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A team of roboticists at Multi-Scale Robotics Lab, ETH Zurich, working with several hospitals in Switzerland, has developed a magnetically operated robot that could potentially be used to treat people after a stroke. Their ...
Taking an anticoagulant, or blood-thinning medication, can increase one's risk of—or exacerbate—a brain bleed, also known as a brain hemorrhage, which is the deadliest type of stroke. Now, new research finds that faster ...
Feb 14, 2024
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A course of acupuncture may curb the heightened risk of stroke associated with rheumatoid arthritis, finds a comparative study published in the open access journal BMJ Open.
Feb 13, 2024
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A stroke is the rapidly developing loss of brain function(s) due to disturbance in the blood supply to the brain. This can be due to ischemia (lack of blood supply) caused by thrombosis or embolism or due to a hemorrhage. As a result, the affected area of the brain is unable to function, leading to inability to move one or more limbs on one side of the body, inability to understand or formulate speech, or inability to see one side of the visual field. In the past, stroke was referred to as cerebrovascular accident or CVA, but the term "stroke" is now preferred.[citation needed]
A stroke is a medical emergency and can cause permanent neurological damage, complications, and death. It is the leading cause of adult disability in the United States and Europe. In the UK, it is the second most common cause of death, the first being heart attacks and third being cancer. It is the number two cause of death worldwide and may soon become the leading cause of death worldwide. Risk factors for stroke include advanced age, hypertension (high blood pressure), previous stroke or transient ischemic attack (TIA), diabetes, high cholesterol, cigarette smoking and atrial fibrillation. High blood pressure is the most important modifiable risk factor of stroke.
The traditional definition of stroke, devised by the World Health Organization in the 1970s, is a "neurological deficit of cerebrovascular cause that persists beyond 24 hours or is interrupted by death within 24 hours". This definition was supposed to reflect the reversibility of tissue damage and was devised for the purpose, with the time frame of 24 hours being chosen arbitrarily. The 24-hour limit divides stroke from transient ischemic attack, which is a related syndrome of stroke symptoms that resolve completely within 24 hours. With the availability of treatments that, when given early, can reduce stroke severity, many now prefer alternative concepts, such as brain attack and acute ischemic cerebrovascular syndrome (modeled after heart attack and acute coronary syndrome respectively), that reflect the urgency of stroke symptoms and the need to act swiftly.
A stroke is occasionally treated with thrombolysis ("clot buster"), but usually with supportive care (speech and language therapy, physiotherapy and occupational therapy) in a "stroke unit" and secondary prevention with antiplatelet drugs (aspirin and often dipyridamole), blood pressure control, statins, and in selected patients with carotid endarterectomy and anticoagulation.
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