Stroke

Experts urge rethink on health target

The concept of premature mortality needs to be either abandoned or redefined if it is not to discriminate against older people, according to a University of East Anglia (UEA) academic and other experts on ageing.

Aug 30, 2016
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A new anticoagulant option before cardioversion

Patients with atrial fibrillation (AF) who need anticoagulation before undergoing electrical correction of their abnormal heartbeat (cardioversion) may benefit from treatment with edoxoban - a non-vitamin K antagonist (VKA) ...

Aug 30, 2016
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Economists say sugar taxes likely to be effective

Debates on a proposed tax for sugar sweetened beverages in South Africa have reached fever pitch with the local food and beverage industry squaring up against the proposed sugary drinks tax expected to be implemented in April ...

Aug 30, 2016
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Tight focus on blood sugar narrows options for diabetes

The glucocentric focus on lowering blood sugar in Type 2 diabetes may have short-circuited development of new diabetes therapies, according to a new paper published by Mayo Clinic researchers in the journal Circulation: Cardiovascular ...

Aug 29, 2016
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A stroke, also known as a cerebrovascular accident (CVA), is the rapid loss of brain function(s) due to disturbance in the blood supply to the brain. This can be due to ischemia (lack of blood flow) caused by blockage (thrombosis, arterial embolism), or a hemorrhage (leakage of blood). As a result, the affected area of the brain cannot function, which might result in an inability to move one or more limbs on one side of the body, inability to understand or formulate speech, or an inability to see one side of the visual field.

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 and the second leading cause of death worldwide. Risk factors for stroke include old 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.

A silent stroke is a stroke that does not have any outward symptoms, and the patients are typically unaware they have suffered a stroke. Despite not causing identifiable symptoms, a silent stroke still causes damage to the brain, and places the patient at increased risk for both transient ischemic attack and major stroke in the future. Conversely, those who have suffered a major stroke are at risk of having silent strokes. In a broad study in 1998, more than 11 million people were estimated to have experienced a stroke in the United States. Approximately 770,000 of these strokes were symptomatic and 11 million were first-ever silent MRI infarcts or hemorrhages. Silent strokes typically cause lesions which are detected via the use of neuroimaging such as MRI. Silent strokes are estimated to occur at five times the rate of symptomatic strokes. The risk of silent stroke increases with age, but may also affect younger adults and children, especially those with acute anemia.

An ischemic stroke is occasionally treated in a hospital with thrombolysis (also known as a "clot buster"), and some hemorrhagic strokes benefit from neurosurgery. Treatment to recover any lost function is termed stroke rehabilitation, ideally in a stroke unit and involving health professions such as speech and language therapy, physical therapy and occupational therapy. Prevention of recurrence may involve the administration of antiplatelet drugs such as aspirin and dipyridamole, control and reduction of hypertension, and the use of statins. Selected patients may benefit from carotid endarterectomy and the use of anticoagulants.

This text uses material from Wikipedia licensed under CC BY-SA

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