AAA  Jul. 14, 2016 11:12 AM ET
Pre-stroke heart disease risk factors increase long-term risk of stroke, dementia
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Visitors walk into a large pool filled with faux confetti-colored sprinkles, the biggest attraction of ice cream-themed works of art previewed at the Museum of Ice Cream, Thursday July 28, 2016, in New York. The museum opens on Friday and runs through Aug. 31. (AP Photo/Bebeto Matthews)
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People>high blood pressure before their first , according to a study. stroke

Researchers compared 1,237 stroke survivors to a stroke-free group of about 5,000 people from an existing long-term study. They found:

One year after suffering a stroke, survivors retained a high risk of a recurrent stroke or dementia for at least five years.

After one year, first-time stroke survivors were three times more likely than those who hadn’t suffered a stroke to have a recurrent stroke.

Stroke survivors were nearly two times more likely to have dementia than those who hadn’t suffered a stroke.

Among>high-density lipoprotein good cholesterol; smoking; and transient ischemic attack, or mini stroke.

“We already know that stroke patients have an increased risk of recurrent stroke and dementia; what we didn’t know was whether this increased risk persists for a long time after stroke and whether heart disease risk factors present before the first stroke influenced the risk of recurrent strokes or dementia,” said M. Arfan Ikram, M.D., Ph.D., senior study author and associate professor in the Department of Epidemiology, Neurology and Radiology at Erasmus University Medical Center in Rotterdam, the Netherlands.

The research was published Thursday in the American Heart Association journal Stroke.

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