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St. Jude Medical

December 21st, 2014
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Stroke Survivors with Atrial Fibrillation May Have Higher Risk of Dementia

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Stroke Survivors with Atrial Fibrillation May Have Higher Risk of Dementia

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In a recent metaanalysis of several previously published studies people with atrial fibrillation were compared to people without atrial fibrillation and followed to determine who developed dementia over time. A total of 15 studies were analyzed, with 46,637 participants with an average age of 72. The research found that stroke survivors with atrial fibrillation were 2.4 times more likely to develop dementia than stroke survivors who did not have the heart condition. About 25 percent of patients with stroke and atrial fibrillation were found to have developed dementia during follow-up. "These results may help us identify potential treatments that could help delay or even prevent the onset of dementia," said study author Phyo Kyaw Myint, MD, of the University of East Anglia in Norfolk, U.K. "Options could include more rigorous management of cardiovascular risk factors or of atrial fibrillation, particularly in stroke patients." Myint noted that the research on whether people who have atrial fibrillation but have not had a stroke have any greater risk of dementia was not conclusive.

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