Cerebral small vessel disease pathology in COVID-19 patients: A systematic review

Ageing Res Rev. 2023 Jul:88:101962. doi: 10.1016/j.arr.2023.101962. Epub 2023 May 22.

Abstract

Cerebral small vessel disease (CSVD) is the leading cause of vascular cognitive impairment and is associated with COVID-19. However, contributing factors that often accompany CSVD pathology in COVID-19 patients may influence the incidence of cerebrovascular complications. Thus, a mechanism linking COVID-19 and CSVD has yet to be uncovered and differentiated from age-related comorbidities (i.e., hypertension), and medical interventions during acute infection. We aimed to evaluate CSVD in acute and recovered COVID-19 patients and to differentiate COVID-19-related cerebrovascular pathology from the above-mentioned contributing factors by assessing the localization of microbleeds and ischemic lesions/infarctions in the cerebrum, cerebellum, and brainstem. A systematic search was performed in December 2022 on PubMed, Web of Science, and Embase using a pre-established search criterion related to history of, or active COVID-19 with CSVD pathology in adults. From a pool of 161 studies, 59 met eligibility criteria and were included. Microbleeds and ischemic lesions had a strong predilection for the corpus callosum and subcortical/deep white matter in COVID-19 patients, suggesting a distinct CSVD pathology. These findings have important implications for clinical practice and biomedical research as COVID-19 may independently, and through exacerbation of age-related mechanisms, contribute to increased incidence of CSVD.

Keywords: Aging; COVID-19; Cerebral small vessel disease; Cognitive impairment.

Publication types

  • Systematic Review
  • Review
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, N.I.H., Extramural

MeSH terms

  • COVID-19* / complications
  • COVID-19* / epidemiology
  • Cerebral Hemorrhage / complications
  • Cerebral Hemorrhage / epidemiology
  • Cerebral Hemorrhage / pathology
  • Cerebral Small Vessel Diseases* / complications
  • Humans
  • Hypertension* / pathology
  • Magnetic Resonance Imaging
  • White Matter* / pathology