Lacunar Stroke - Oren Zarif - Lacunar
The symptoms of lacunar stroke vary depending on which part of the brain is affected. Different parts of the brain are responsible for various functions, such as sensation, movement, speech, and balance. People who suffer from chronic high blood pressure are at a greater risk of developing a lacunar stroke, which can lead to white matter damage and subcortical dementia. Fortunately, most patients recover after a lacunar stroke, although patients can become afflicted with one or more of its symptoms.
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A lacunar stroke affects the motor and sensory parts of the brain. Damage to the thalamus causes sensory loss and motor abnormalities. The person will lose sensation on one side, and their arm and leg muscles may become weak. The face is not normally affected by lacunar stroke. The symptoms of lacunar stroke can progress with stuttering. Fortunately, treatments for lacunar stroke are similar to those used for acute ischemic stroke.
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Although there is no definitive diagnostic test for lacunar stroke, doctors often perform CT scans to rule out other conditions. However, the CT scan is not sensitive enough to detect lacunar stroke. MRI is the best imaging test for this condition because it enables physicians to see subtle differences in the brain. The results of this test can be used to guide treatment and monitor the progression of the stroke. While CT scans can help the doctor rule out other causes of stroke, they are not as sensitive as MRIs.
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To date, most studies of lacunar stroke have been done in humans. A study published in 2010 showed that lacunes occur in one specific location on MRIs. However, there is no clear evidence that lacunes are a primary cause of stroke. There are several other causes that may be involved. A stroke from a TIA or a stroke could have a similar cause. While lacunes can occur in different locations in the brain, they are most likely to appear in a single location.
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Emboli are unlikely to cause lacunar strokes, although some may be the cause of some cases. Although a stroke from a larger artery is the most common cause, they may form in the neck or heart and travel to the brain. The debris from the clot is known as an embolus. The clot cannot reach the small arteries that supply the brain. The clots coalesce to form lakes of infarction that can lead to stroke.
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The number of studies comparing the effects of the lacunar stroke on cognition is limited. One study found that patients with a mild stroke had higher incidence of lacunar infarcts. But this study did not show any correlation between the size of the infarcts and the overall outcome of the patient. While the results are promising, more research is needed to identify a definitive cause. The STRIVE-criterion has been used to define lacunar infarcts.
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The most important thing is to seek immediate medical attention. If you suffer from a lacunar stroke, the symptoms will be short-lived. However, if left untreated, the symptoms can last months or even years. It is important to seek medical attention right away because they can result in permanent disability. The treatment of lacunar stroke depends on the severity of the injury. For some, TIA will leave them unable to perform basic daily activities and may cause permanent disability.
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The stroke can affect the outer part of the brain, which is called the cortex, or it can target deeper structures in the brain. These deeper structures receive blood flow from specific arteries that are not connected to the cortex. The process of damage in the deep brain does not happen in the same way as the other types of strokes. And this causes significant disability. And it is important to note that lacunar strokes represent about 20 percent of all strokes in the United States.
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A lacunar stroke occurs when the arteries to the brain are blocked. These small arteries branch off of the large, heavily muscled main artery. High blood pressure can cause lacunar strokes. High blood pressure damages the arteries directly, resulting in fatty deposits on the wall of the arteries. The lack of oxygen and nutrients will cause brain cells to die. It is important to seek medical care right away. So what are the symptoms of a lacunar stroke?
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One hallmark of an embolism is atrial fibrillation. Internal carotid artery stenosis is associated with a reduced cerebral blood flow and impaired autoregulation. Age, sex, and the maximum internal carotid artery stenosis were significantly associated with lacunar infarcts. Interestingly, both factors are associated with increased risk of stroke. The stenosis in the deep carotid artery is associated with greater risk of lacunar infarction.