Lacunar Stroke - Oren Zarif - Lacunar Stroke
One important aspect of understanding the mechanisms of lacunar stroke is to define the progression of the disease. While cortical infarctions tend to develop progressive motor deficits, lacunar strokes do not. A lacunar infarct may be a more asymptomatic form of the disease, but it can cause a wide range of symptoms. If left untreated, lacunar stroke can progress to vascular dementia and other disease-related complications.
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A thorough assessment of the patient's risk factors can determine if there are any abnormalities in the arteries of the neck. Patients with a history of vascular disease, such as atrial fibrillation, are at increased risk for stroke. In addition, the prevalence of small deep infarcts in patients with lacunar stroke is similar to that of the general population, although it is significantly higher in patients with age. Other risk factors associated with stroke include smoking, obesity, and low physical activity.
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A lacunar stroke affects both the motor and sensory areas of the brain. Damage to the thalamus is the main cause of sensory loss. Motor abnormalities result in ataxia and may lead to weakness in one arm. Patients may also experience facial weakness, dysarthria, and speech difficulties. In contrast, lacunar strokes that affect only the sensory areas are known as pure sensory lacunar strokes.
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When a lacunar stroke occurs, it is rare that blood clots form in the brain. These clots may form in the neck, heart, or other area, and travel through the bloodstream to the brain. They are called embolus and cannot penetrate small arteries. If they do, they will block the blood supply to the brain and cause a stroke. If this happens, the patient should seek medical attention.
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If the symptoms are severe enough, a doctor may administer intravenous clot-busting medications. A neurosurgeon may also remove the clot or blockage in the brain. Although most patients recover from lacunar strokes, some suffer long-term disabilities and may require physical rehabilitation. And, even if the symptoms go away on their own, the patient will probably need to undergo rehabilitation for months or even years.
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Although lacunar stroke is not always immediately obvious, it is important to seek medical attention if it occurs. The symptoms of this type of stroke are different depending on which area of the brain has been affected. Different areas of the brain are responsible for different functions, such as sensation, movement, speech, and balance. Chronic high blood pressure and diabetes are also known risk factors. People with family history of stroke should undergo yearly physicals to screen for conditions that raise the risk of this type of stroke.
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Although the lesion location of lacunar stroke can affect cognitive functioning, this study does not include a control group for direct comparison. The study should have been age-matched so that the researchers could compare lacunar stroke patients to healthy control subjects. Cognitive changes would also have been evaluated one and three years after the stroke. It is vital that clinicians evaluate participants' cognitive function when considering the potential risk of lacunar stroke. The cognitive deficits that result from this type of stroke should be investigated as well as the associated risk factors.
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In addition to lifestyle factors and genetics, individuals should also pay attention to their diets. A balanced diet, smoking cessation, and exercise at least 150 minutes a week are all beneficial to the prevention of lacunar stroke. In addition to avoiding these risk factors, people with certain chronic health conditions should make sure they see a physician regularly and seek treatment immediately if they develop a stroke. This is especially important if the stroke occurs early.
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A lacunar stroke is the result of an occlusion of a small branch of a larger blood vessel. These types of strokes tend to occur in the deep parts of the brain, which contain many smaller blood vessels. Patients usually show symptoms of a lacunar stroke based on the area affected. These strokes tend to be asymptomatic in the short term, but they can cause significant physical and cognitive disabilities.
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Almost all patients with lacunar stroke have at least one risk factor that is associated with ischemic stroke. Hypertension and diabetes mellitus are the two most common risk factors. These two risk factors are also more likely to occur if a patient has atherosclerosis. These two conditions can cause a stroke in anyone with high blood pressure. But this doesn't mean that they are entirely responsible for lacunar stroke.