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Title: Cerebral Microbleeds More Common in Blacks Than in Whites
URL: http://www.pslgroup.com/dg/22E66A.htm
Doctor's Guide
October 8, 2008

NEW YORK -- October 8, 2008 -- Cerebral microbleeds appear to be more common in blacks than in whites, increasing the likelihood of having a stroke, according to a study published in the October 7 issue of Neurology.

For the study, 87 patients (42 black, 45 white) from the Washington, DC, area who had suffered an intracerebral hemorrhage underwent brain scans. Researchers also determined the group's risk factors for stroke such as age, hypertension, and alcohol use.

The black cohort was younger (P < .001), and had a greater rate of hypertension (P = .001), but not other vascular risk factors.

The study found that microbleeds were more prevalent in the black population, with 74% of blacks having one or more microbleeds compared to 42% of whites (P = .005). The black population also tended to have a greater frequency of microbleeds in multiple territories than the white population (38% vs 22%, P = .106).

While black patients had more lesions in the lower and middle parts of the brain, white patients had them most frequently near the surface of the brain.

"Finding racial differences that could be linked with a higher prevalence for these brain lesions may lead to new methods for testing and treating people to prevent stroke," said study author Chelsea Kidwell, MD, Georgetown University Medical Center, Washington, DC.

"Knowing if a person has a higher likelihood of having these brain lesions or bleeding in the brain is important for doctors and patients when caring for medically underserved groups of people and optimally treating their stroke risk factors."

SOURCE: American Academy of Neurology

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