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A neurologist's perspective on the aging brain

O Sacks1

  • 1Department of Neurology, Albert Einstein College of Medicine, New York, NY, USA.

Archives of Neurology
|October 28, 1997
PubMed
Summary
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Neurologists observe numerous dementia cases, primarily Alzheimer disease (AD), in elderly patients. This reflects a long-term clinical perspective on degenerative neurological syndromes in aging populations.

Area of Science:

  • Neurology
  • Geriatrics
  • Neurodegenerative Diseases

Background:

  • Extensive clinical experience with older patients in long-term care settings.
  • Observation of thousands of cases over 30 years.
  • Focus on dementias and other degenerative neurological syndromes.

Purpose of the Study:

  • To provide a clinical perspective on the prevalence and progression of dementia, particularly Alzheimer disease (AD).
  • To reflect on the evolution of the understanding and terminology of AD over a 30-year career.

Main Methods:

  • Longitudinal clinical observation of patients in old age homes and chronic hospitals.
  • Case review and analysis of neurological syndromes, focusing on dementia progression.
  • Comparison of current understanding of Alzheimer disease (AD) with historical definitions.

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Main Results:

  • A high proportion of elderly patients present with steadily or rapidly advancing dementias.
  • The clinical presentation aligns with what is currently termed Alzheimer disease (AD).
  • The definition and application of the term Alzheimer disease (AD) have broadened significantly over time.

Conclusions:

  • Alzheimer disease (AD) is a prevalent and progressive neurodegenerative condition in the elderly population.
  • Clinical practice reveals a wide spectrum of dementia presentations consistent with AD.
  • The evolving understanding of AD necessitates a broader diagnostic scope than historically applied.