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Common form of stroke may not be due to blocked arteries, study finds

May 9, 2026

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Widening, rather than blocked, brain arteries may cause a common form of stroke, new study finds. Image credit: CasarsaGuru/Getty Images

Researchers found that the narrowing of large arteries was unlikely to result in lacunar stroke, a common form of stroke.
In contrast, the widening of arteries within the brain was associated with both lacunar stroke and a brain issue known as cerebral small vessel disease.
The study authors suggest that treatment for lacunar stroke and cerebral small vessel…

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