Atrial fibrillation linked to dementia

Atrial fibrillation is linked with a higher risk of developing dementia, a population-based study suggests.

Data from 6514 people aged 55 or over shows those with AF at baseline had a 33% higher risk of developing dementia at some point in the following 20 years.

And there was an 81% increase in dementia risk in people who did not have AF at baseline, but had incident AF during the 20 year follow up,