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Cerebral microbleeds in patients with COVID-19: is there an inevitable connection?

Yuchang Wang1, Yuetao Hu1, Ruichen Zhao1

  • 1Department of Neurosurgery, Tianjin Neurological Institute, State Key Laboratory of Experimental Hematology, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System Tianjin & Ministry of Education, Tianjin Medical University General Hospital, Tianjin 300052, China.

Brain Communications
|September 4, 2024
PubMed

Insights

COVID-19 is linked to cerebral microbleeds, small brain hemorrhages. These bleeds correlate with severe illness and higher mortality risk, requiring increased neurological monitoring for patients.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Vascular Medicine

Background:

  • The COVID-19 pandemic highlighted neurological complications of systemic infections.
  • Cerebral microbleeds are increasingly recognized in patients with COVID-19.

Purpose of the Study:

  • To review and analyze the prevalence, pathophysiology, and clinical implications of cerebral microbleeds in COVID-19 cohorts.
  • To synthesize current evidence on the association between cerebral microbleeds and COVID-19 severity.

Main Methods:

  • Comprehensive literature review and analysis of existing studies on COVID-19 and cerebral microbleeds.
  • Aggregation of data on prevalence, risk factors, and outcomes.

Main Results:

  • Cerebral microbleeds are significantly correlated with increased COVID-19 severity.
  • Pathophysiological mechanisms include direct viral effects, inflammation, and coagulation disturbances.
  • Association with elevated morbidity and mortality risks is documented.

Conclusions:

  • Cerebral microbleeds are a critical manifestation in severe COVID-19, not coincidental.
  • Enhanced neurological surveillance is crucial for managing COVID-19 patients.
  • Methodological harmonization is needed to advance understanding and interventions for neurological outcomes.
Keywords:
COVID-19brain pathologycerebral microbleedspathogenesis

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