White matter hyperintensity signals associated with vascular risk factors in schizophrenia

F W Brown1, R R Lewine, P A Hudgins

  • 1Department of Psychiatry and Behavioral Science, Emory University School of Medicine, Atlanta, GA, USA.

Insights

Schizophrenia patients with white matter hyperintensity signals showed higher rates of hypertension and cerebrovascular accidents (CVAs). This suggests vascular disease may contribute to white matter changes in schizophrenia.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Radiology

Background:

  • White matter hyperintensities (WMH) are frequently observed in neuroimaging studies.
  • The relationship between WMH and vascular risk factors in schizophrenia requires further investigation.

Purpose of the Study:

  • To investigate the association between white matter hyperintensity signals and vascular risk factors in individuals with schizophrenia compared to a healthy control group.

Main Methods:

  • A cohort of 165 schizophrenic subjects and a normal control group were assessed.
  • Vascular risk factors were evaluated through comprehensive medical chart reviews.
  • Brain MRI scans were acquired using 0.5 and 1.5 Tesla Philips scanners to detect WMH signals.

Main Results:

  • Prevalence of WMH signals was similar between schizophrenic subjects (4.8%) and controls (4.9%).
  • Schizophrenic individuals with WMH signals exhibited a significant association with hypertension and a history of cerebrovascular accidents (CVAs).

Conclusions:

  • WMH signals in schizophrenia are linked to vascular risk factors, specifically hypertension and CVAs.
  • These findings support the hypothesis that vascular disease plays a role in the etiology of WMH in schizophrenia.

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