Lacunar Stroke - Oren Zarif - Lacunar Stroke

Lacunar stroke is a type of stroke in which the infarct occurs in the brain and causes a pronounced loss of cerebral blood flow. The risk increases with age and is more common in people with vascular disease, such as diabetes and heart disease. Studies also show that people of African descent have a higher risk of lacunar infarct. A recent review analyzed two studies in a predominantly Black community and found that one study had 52 cases of lacunar stroke for every 100,000 people. The other study was in an Indian community where the incidence of lacunar stroke was less than 30 per 100,000 people.

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A CT scan can take detailed pictures of the brain, but a lacunar stroke is small and is not usually visible with CT imaging. Magnetic resonance imaging is a better tool for finding these types of strokes. Angiography is another way to find if blood vessels have been obstructed. However, these tests are not very sensitive and don't show every lacunar stroke. It is important to be evaluated immediately if you suspect a lacunar stroke.

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A lacunar stroke affects the deep brain organs, which relay messages between the brainstem and cortex. These organs coordinate complex body movements and may even be affected by a lacunar stroke. Although lacunar stroke is rare, it can be debilitating. In fact, 20 percent of strokes are lacunar in nature. It's important to get diagnosed early, as these strokes are the most common type of vascular dementia.

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Another type of stroke called a lacunar infarct is usually small in size. Unlike a normal stroke, lacunar infarcts are often undetected and may cause no symptoms. However, they disrupt bodily functions and often result in permanent disability. Fortunately, lacunar strokes rarely involve blood clots. A blood clot forms in the heart or neck and travels through the bloodstream to the brain. These clots are called embolus and cannot travel through the small arteries of the brain.

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The symptoms of a lacunar stroke depend on which part of the brain has been deprived of blood supply. Different areas of the brain are responsible for different functions, such as sensation, movement, speech, and balance. People with chronic high blood pressure are more likely to suffer from multiple lacunar stroke, which can lead to dementia and emotional behavior. However, many patients recover from this type of stroke. A comprehensive approach is necessary in order to find the cause of the stroke.

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While there is no definitive cause of lacunar stroke, the associated risk factors are more pronounced in patients with intracranial large artery atheroma. Both conditions are characterized by elevated MCA velocities and are likely to occur in an older population. In addition, these factors may affect the severity of the stroke. In some cases, people with a lacunar stroke may be unable to do anything for themselves and may require nursing care.

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While the cause of lacunar stroke remains unclear, it should not be disregarded. Symptoms of lacunar stroke are more likely to improve if treatment is started immediately. If a stroke victim receives immediate medical care, the symptoms may improve in a matter of minutes or even days. However, if the stroke is severe, the person may be forced to undergo physical rehabilitation and may have to face permanent disability. So, early diagnosis is essential.

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CTP has better sensitivity than NCCT/CTA for detecting acute lacunar infarcts. It also showed better sensitivity than NCCT/CTA for patients with two cm or less in the brain. The sensitivity of CTP was higher than that of DWI, but the sensitivity of the other two modalities was lower. The researchers found that the high sensitivity of NCCT and CTP helped distinguish lacunar infarcts from other types of strokes.

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Patients with lacunar stroke may require medication to control their risk factors, as well as therapy to improve their ability to perform daily activities. Although only 33% of people with lacunar stroke fully recover from the symptoms, most suffer long-term disabilities. The risk for subsequent strokes is not zero and is directly related to lifestyle habits. If you've experienced lacunar stroke, seek medical attention immediately. You'll be glad you did!

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A CT scan for a lacunar stroke is useful because the infarct is small and often ill-defined. It's also useful for determining whether there's a hemorrhagic component, as the hyperdensity of a large artery is indicative of a thrombus within the arterial lumen. A lacunar stroke is characterized by a loss of gray-white differentiation and focal hypoattenuation in the brain parenchyma. A lacunar stroke may be associated with a chronic lesion.