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Relationship between cerebral microbleeds location and cognitive impairment in patients with ischemic cerebrovascular

Jianjun Yang1, Yongtao Lyu, Yue Ma

  • 1Department of Geriatric Medicine, Shandong Provincial Third Hospital, Jinan, People's Republic of China.

Neuroreport
|July 14, 2018
PubMed

Insights

Cerebral microbleeds (CMBs) in ischemic cerebrovascular disease are linked to significant cognitive impairment, particularly in memory and executive functions. CMB location further influences specific cognitive deficits, impacting patient outcomes.

Area of Science:

  • Neurology
  • Neuroimaging
  • Cognitive Science

Background:

  • Cerebral microbleeds (CMBs) are markers of cerebrovascular disease, but their impact on cognition remains debated.
  • Understanding the relationship between CMBs and cognitive function is crucial for managing cerebrovascular disease.

Purpose of the Study:

  • To investigate the association between CMBs and cognitive impairment in patients with ischemic cerebrovascular disease.
  • To explore how the location of CMBs correlates with specific cognitive domains.

Main Methods:

  • A cross-sectional study involving 125 patients with ischemic cerebrovascular disease (lacunar infarction or transient ischemic attack).
  • Brain MRI with susceptibility-weighted imaging was used to detect CMBs.
  • Cognitive function was assessed using the Montreal Cognitive Assessment (MoCA) scale.

Main Results:

  • Patients with CMBs exhibited greater cognitive impairment compared to those without CMBs.
  • Specific cognitive domains affected include visual space and executive function, memory, and abstract thinking.
  • CMB location was associated with distinct cognitive deficits: basal ganglia-thalamic with memory and visual-spatial/executive function; cortical-subcortical with abstract thinking; mixed regions with all three.

Conclusions:

  • CMBs are associated with significant cognitive impairment in ischemic cerebrovascular disease.
  • The location of CMBs influences the pattern of cognitive deficits observed.
  • These findings enhance the understanding of CMBs' cognitive impact in cerebrovascular disease.

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