Silent strokes common in middle-aged people
Substantial numbers of apparently healthy middle-aged people suffer from silent strokes, US research suggests.
An analysis of MRI data from 2,000 people taking part in the Framingham Offspring Study identified silent cerebral infarction in 10.7% of people who had no symptoms of stroke - putting them at risk of future strokes and potentially dementia.
All factors in the Framingham risk profile – such as age, systolic blood pressure, diabetes, smoking and cardiovascular disease – were associated with a risk of silent stroke.
There was also a significant positive correlation with incidence of atrial fibrillation.