According to research published in the June 19 online issue of Neurology®, the medical journal of the American Academy of Neurology, individuals who experience any stroke symptoms—but do not have a stroke—may also be more likely to develop problems with memory and thinking.
"'Silent strokes' that cause small areas of brain damage have been tied to memory and thinking problems, but it has been difficult to study these 'silent strokes' due to the cost and inconvenience of obtaining brain MRIs," said study author Brendan J. Kelley, MD, of the University of Cincinnati. "With this study, we found that a quick, seven-question test can be a cost-effective tool to help identify people at increased risk of developing dementia."
Kelley is a member of the American Academy of Neurology.
For the research, 23,830 people from the REGARDS study with an average age of 64 with no memory problems who had never had a stroke completed the stroke symptoms questionnaire at the start of the study and every six months for at least two years. The questionnaire asks about symptoms of stroke or transient ischemic attack (TIA), or a "mini-stroke" where symptoms resolve quickly with no permanent damage. The participants' memory and thinking skills were also tested yearly. During the study, 7,223 people had stroke symptoms.
The study found that people who had stroke symptoms were more likely to develop memory and thinking problems. Caucasians who had stroke symptoms were twice as likely to develop cognitive problems (11 percent) as Caucasians who did not have stroke symptoms (5 percent). African-Americans who had stroke symptoms were nearly 70 percent as likely to develop thinking problems (16 percent) as African-Americans who did not have stroke symptoms (about 10 percent).
"Our study highlights the importance of discussing stroke-like symptoms with your family doctor, even if they don't last long," Kelley said. "These symptoms can be a warning sign that a person is at increased risk of stroke or problems with thinking or memory."
The REGARDS study was supported by the National Institute of Neurological Disorders and Stroke, National Institutes of Health and Department of Health and Human Services.
To learn more about stroke and cognitive decline, visit http://patients.aan.com/go/home.
The American Academy of Neurology, an association of more than 26,000 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer's disease, stroke, migraine, multiple sclerosis, brain injury, Parkinson's disease and epilepsy.
For more information about the American Academy of Neurology, visit http://www.aan.com
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