Cause of multiple infarct dementia, multiple infarct dementia is caused by what the cause

multiple infarct dementia is caused by what the?

(a) causes

cerebrovascular disease is multiple infarct dementia (MID) based, MID is the direct cause, mainly due to atherosclerosis, arterial stenosis and atherosclerotic plaque continue to fall off, causing repeated multiple cerebral infarction, and then lead to MID, risk factors may include age, low education level, hypertension, diabetes, hyperlipidemia, history of stroke, stroke lesion location and size, aphasia and other stroke combined.

(B) the pathogenesis

carotid artery or middle cerebral artery and other major vascular involvement, make atherosclerotic stenosis, intimal thickening, thrombosis or emboli (repeated once or more) off, can lead to cerebral cortex and large hemispheric infarction with multiple lesions, multiple lesions in the brain infarct volume was significantly reduced, leading to brain atrophy and bilateral lateral expansion, when the infarction of brain tissue volumes greater than 80 ~ 150ml, the clinical manifestations of dementia may occur, especially in the frontal lobe , temporal lobe and the limbic system and other specific parts of the vascular damage, often easily lead to dementia.

visible hemorrhagic brain parenchyma or ischemic injury, ischemic common, common lesions are multiple lacunar lesions or large areas of infarction, and carotid artery, middle cerebral artery trunk and branches and other large cortical blood vessels atherosclerotic lesions, diffuse brain lesions, multiple lesions or lacunar limitations lesions to cortical or subcortical damage-based, multiple infarct lesion formation, and then can lead to brain atrophy, white matter atrophy is can cause bilateral lateral expansion. MID

vascular disease is not the only cause, the study found many patients exist neurodegenerative dementia-related disease, but subclinical, a sub-clinical stage, in the event of cerebrovascular disease events, there may be more rapid dementia syndrome clinical manifestations, pathology was the performance of mixed dementia.