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Journal of Geriatric Psychiatry and Neurology
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Binswanger's Disease (Part II): Pathogenesis of Subcortical Arteriosclerotic Encephalopathy and Its Relation to Other Dementing Processes

Bradley Peterson

Psychiatric Service, Massachusetts General Hospital, and Harvard Medical School, Boston, MA

Paul Summergrad

Psychiatric Service, Massachusetts General Hospital, and Harvard Medical School, Boston, MA

Subcortical arteriosclerotic encephalopathy (SAE) is a common though infrequently recognized dementia of the elderly. The unique vascular anatomy of the subcortical white matter and central brain stem probably predisposes those regions to chronic ischemia and incomplete infarction in the presence of various cardiovascular and hemodynamic insults. Recent studies have begun to define the risk factors for SAE, and others have shown it to be a condition frequently comorbid with the dementias of Alzheimer's disease, the multi-infarct state, and normal pressure hydrocephalus. Recent research into the etiologies of these disorders suggest certain pathogenetic links between them, strongly implying that they are not neatly distinct disease entities, as is commonly believed, and accounting for some of the overlap between these dementing illnesses seen clinically. (J Geriatr Psychiatry Neurol 1989; 2:171-181).

Journal of Geriatric Psychiatry and Neurology, Vol. 2, No. 4, 171-181 (1989)
DOI: 10.1177/089198878900200402
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