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Pattern of and risk factors for brain microbleeds in neurodegenerative dementia

Javier Olazarán1, Ana Ramos, Inmaculada Boyano

  • 11Alzheimer Disease Research Unit, Alzheimer Center Reina Sofía Foundation-CIEN Foundation, Carlos III Institute of Health, Madrid, Spain.

American Journal of Alzheimer'S Disease and Other Dementias
|January 11, 2014
PubMed
Abstract

Insights

Brain microbleeds (BMBs) are common in neurodegenerative dementia, affecting nearly half of patients. These BMBs are linked to vascular issues and Alzheimer's disease diagnosis.

Area of Science:

  • Neurology
  • Neuroimaging
  • Geriatrics

Background:

  • Neurodegenerative dementia is a growing public health concern.
  • Brain microbleeds (BMBs) are increasingly recognized as potential markers in neurological disorders.
  • Understanding BMBs' prevalence and associations is crucial for patient management.

Purpose of the Study:

  • To determine the prevalence, locations, and risk factors of BMBs in patients with neurodegenerative dementia.
  • To investigate associations between BMBs and other neurological and vascular conditions.

Main Methods:

  • Cross-sectional study utilizing data from the Alzheimer Center Reina Sofía Foundation database.
  • Description and quantification of BMBs.
  • Univariate statistical analysis to identify potential associations.

Main Results:

  • Prevalence of BMBs was 44.6% in the studied cohort (n=148).
  • Patients with a high number of BMBs (≥4) had more vascular risk factors and diseases.
  • BMBs correlated with ischemic lesions, Alzheimer's disease (AD) diagnosis, cerebrovascular disease, cortical infarction, and anticoagulant/antiplatelet treatment duration.

Conclusions:

  • BMBs are significantly associated with vascular burden and AD diagnosis in older adults with neurodegenerative dementia.
  • Further research is needed to elucidate the underlying mechanisms and clinical implications of BMBs in this population.
Keywords:
Alzheimer’s diseasebrain microbleedsdementiamagnetic resonance imagingrisk factors

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