Chan YM, Wong Y, Khalid N, et al. - Researchers performed structured interviews to explore the prevalence of vertigo/dizziness in acute stroke and the cortical distribution of these lesions in relation to both the known vestibular cortex and the evolution of these symptoms. Participants in the study were 173 consecutive unselected patients admitted to the hyperacute stroke unit at the University College London Hospitals. One hundred twelve patients had subcortical lesions and 53 patients had cortical infarcts, of which 21 patients reported acute dizziness. Vertigo was found in 9% of acute cortical stroke patients, with no single locus of lesion overlap. There is growing evidence to support a lateralized vestibular cortex, with speculation that cortical strokes affecting the right hemisphere are more likely to cause vestibular symptoms than strokes affecting the left hemisphere. The right hemisphere was affected in four of five patients who reported spinning vertigo at the onset of the stroke, indicating a trend for this association.