A series of strokes leads to multi-infarct dementia. There is a step-by-step deterioration of mental skills, particularly recent memory. Occasionally, there are co-existing signs and symptoms of Alzheimer's disease. Only a small number of people with dementia, probably about 10%, are thought to have the disorder from multiple strokes.
Causes of Multi-infarct Dementia
Strokes and multi-infarct dementia are typically the result of underlying disorders, such as hypertension and atherosclerosis. Some hereditary disease may lead to more rapid disease of the arterial walls than is normal. Repeated emboli may also be produced from cardiac sources, such as blood clots or diseased heart valves.
Signs and Symptoms of Multi-infarct Dementia
Step-by-step loss of memory is the most obvious symptom. When these episodes occur, there is often clouding of consciousness or other signs of stroke, such as weakness, numbness or speech difficulties. Gradually there is a disintegration of personality and increased lability, with uncontrolled laughing or crying.
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Medical Content Last Updated on 07/12/2008
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