Vascular Contributions to Cognitive Impairment in Late Life

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Using Retinal Imaging to Study Dementia
09:17

Using Retinal Imaging to Study Dementia

Published on: November 6, 2017

Helena C Chui1, Liliana Ramirez Gomez2

  • 1Department of Neurology, University of Southern California, 1540 Alcazar Street, CHP215, Los Angeles, CA 90033, USA.

Neurologic Clinics
|April 16, 2017
PubMed

Insights

Cerebrovascular disease (CVD) is a major cause of cognitive impairment. Managing vascular risk factors is key to reducing dementia risk and cognitive decline.

Area of Science:

  • Neurology
  • Neuroimaging
  • Geriatrics

Background:

  • Cerebrovascular disease (CVD) is the second leading cause of late-life cognitive impairment.
  • Structural neuroimaging excels at detecting macrovascular events but struggles with microvascular changes and preclinical disease.
  • Autopsy data reveal frequent co-occurrence of vascular and neurodegenerative pathologies.

Purpose of the Study:

  • To highlight the limitations of current neuroimaging in detecting all forms of cerebrovascular disease.
  • To emphasize the importance of a multifactorial approach to cognitive impairment, considering both vascular and neurodegenerative factors.
  • To underscore the role of vascular risk factor management in preventing cognitive decline.

Main Methods:

  • Review of existing literature on cerebrovascular disease and cognitive impairment.
  • Analysis of neuroimaging capabilities and limitations.
  • Synthesis of autopsy findings regarding co-occurring pathologies.

Main Results:

  • Structural neuroimaging has limitations in detecting microvascular disease, blood-brain barrier changes, and preclinical CVD.
  • Vascular and neurodegenerative conditions frequently coexist in individuals with cognitive impairment.
  • Management of vascular risk factors is a proven strategy for reducing cognitive impairment and dementia.

Conclusions:

  • A multifactorial approach is necessary for understanding and managing late-life cognitive impairment.
  • Vascular health is critical for maintaining cognitive function and preventing dementia.
  • Effective management of vascular risk factors offers a practical method for mitigating cognitive decline.

Keywords:
DiagnosisMRINeuropathologySilent brain infarctTreatmentVascular cognitive impairmentVascular dementiaWhite matter hyperintensity

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