Four out of 10 AF patients have undiagnosed brain damage

Study may explain the link between dementia and atrial fibrillation

Many atrial fibrillation patients have unrecognised brain damage which may help explain the link between AF and dementia in patients who haven’t had a stroke, researchers say.

Among almost 1400 patients with AF but no history of stroke, 41% had silent brain damage, including cerebral infarcts, according to the first results from the Swiss Atrial Fibrillation Cohort (Swiss-AF) study.

The results suggested that clinically unrecognised brain damage might explain the association between dementia and AF in patients without prior stroke, according to

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