Hachinski VC, Iliff LD, Zilkha E, et al.

"Cerebral blood flow in dementia."

Arch Neurol 1975;32:632-7.

I➜The Hachinski Ischemic Score, commonly abbreviated HIS, is a simple 13-items clinical tool used for differentiating types of dementia (primary degenerative, vascular or multi-infarct, mixed type).
Patients with a score of 7 or higher are more likely to have a vascular dementia. A low Hachinski Ischemic Score is less likely to indicate vascular dementia because ischemic lesions severe enough to produce a dementia would be expected to be severe enough to cause the accompanying neurologic changes and elevate the Index.

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