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Vascular disease, specifically multi-infarct dementia (MID), is a significant cause of cognitive decline in the elderly. Early diagnosis through clinical scores and imaging is crucial for managing this condition.
Area of Science:
- Neurology
- Geriatrics
- Vascular Medicine
Background:
- Vascular disease plays a key role in elderly dementia.
- Multi-infarct dementia (MID) results from arterial thrombosis or emboli, distinct from generalized cerebral arteriosclerosis.
- The concept of arteriosclerotic dementia due to chronic hypoperfusion is outdated.
Purpose of the Study:
- To clarify the role of vascular disease in dementia.
- To differentiate MID from other dementia types.
- To emphasize the importance of early MID diagnosis and treatment.
Main Methods:
- Clinical ischemic score assessment.
- Electrophysiologic studies.
- Cerebral computed tomography (CCT) and neuropsychological testing.
Main Results:
- Most MID patients can be distinguished from other dementias using the described methods.
- MID is associated with severe hypertension and thromboembolism.
Conclusions:
- The outdated concept of arteriosclerotic dementia should be rejected.
- Early diagnosis of MID is imperative.
- Appropriate treatment can potentially halt progression and improve symptoms of MID.
Abstract:
The participation of vascular disease in elderly dementia has been clarified to a significant degree in the past decade. The term multi-infarct dementia implies that severe mental impairment can result from thrombosis of large and medium arteries or from multifocal emboli of either cardiac or arterial origin. This is markedly different from the concept, which, unfortunately, is still the generally current view in the lay press, in some medical journals, and in advertisements of pharmaceutical companies, that gradual narrowing of cervical and cerebral arteries produces chronic hypoperfusion of the brain and is the basis of mental deterioration. This concept of generalized cerebral arteriosclerosis or arteriosclerotic dementia is no longer acceptable. Most patients with MID can be distinguished from those suffering from other types of dementia by employing a clinical ischemic score supplemented by electrophysiologic studies, CCT, and neuropsychological testing. Furthermore, the association of MID with severe hypertension and thromboembolism makes early diagnosis imperative, because appropriate treatment may arrest progression and even provide some improvement.