When a person suffers a stroke that is not characterized by any outward symptoms, it is a silent stroke. Often even the patient is not aware of it. A silent stroke usually affects those areas of the brain that deal with thought process and mood regulation. A silent stroke damages a few cells in the brain, which are likely to die over time. A link between depression and silent stroke has been noticed. They are both indicative of reduced blood supply to the brain.
A silent stroke can cause damage to the brain and can be a precursor to a major stroke or transient ischemic attack. Hypertension, atrial fibrillation and smoking are the major triggers for a silent stroke. Elevated levels of total homocysteine or acrolein is a risk factor for a silent stroke. Untreated diabetes can also lead to a silent stroke. A silent stroke episode is usually detected through an MRI can it usually causes lesions that are visible during imaging.
A silent stroke can occur in different ways:
Ischemic stroke: This kind of stroke is the one that most patients suffer when there is blockage of blood supply to the brain due to impaired blood vessels.
Hemorrhagic stroke: This kind of stroke occurs when a blood vessel carrying blood to the brain gets weak and ruptures. Aneurysms are examples of a condition leading to a stroke.
Studies have proved that persons engaging in moderate or intensive exercise on a regular basis had far lesser chance of experiencing a silent stroke.
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Collection of Pages - Last revised Date: April 6, 2020