The authors present a retrospective case notes review of patients diagnosed with homonymous hemianopia following a radiologically confirmed stroke. A total of 85 patients were identified by searching an electronic medical records system over an 11-year period. Data were extracted from the medical notes including time of diagnosis, demographics, presenting symptoms, pre-diagnosis medication, stroke risk factors, inpatient telemetry, and brain imaging. When comparing this cohort to a local registry it is significantly younger, with higher rates of high cholesterol with more than 80% having more than two risk factors. A definitive aetiology could not be defined for 40%, which may be due to incomplete evaluation in over half of these cases. The findings of this study agree with other studies in that posterior circulation stroke occur at a younger age than anterior circulation stroke. This is a reminder that investigations for posterior circulation stroke should be undertaken when a patient presents with sudden visual field loss.
Posterior circulation stroke associated demographics, risk factors and aetiology
Reviewed by Lauren Hepworth
Demographics, risk factors and etiology of posterior cerebral artery stroke causing homonymous hemianopia.
CONTRIBUTOR
Lauren R Hepworth
University of Liverpool; Honorary Stroke Specialist Clinical Orthoptist, Northern Care Alliance NHS Foundation Trust; St Helen’s and Knowsley NHS Foundation Trust, UK.
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