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The Guardian - UK
The Guardian - UK
Politics
Tobi Thomas Health and inequalities correspondent

Lacunar strokes caused by widening of arteries in brain, study suggests

Brain United Kingdom University of Edinburgh
Human brain scans
Lacunar strokes account for a quarter of all strokes in the UK. Photograph: Yuriy Klochan/Alamy

The cause of a type of stroke that affects about 35,000 people across the UK each year has been uncovered by researchers and may explain why some medications are ineffective as treatment.

Lacunar strokes, which account for a quarter of all strokes in the UK, had been linked to the blockage of arteries in the brain by fatty deposits.

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