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

06.05.2026 18:25 | The Guardian World

Finding would explain why type of stroke affecting about 35,000 a year in UK is not as responsive to some medicationThe 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. However, a study published on Wednesday suggests they are not caused by blocked arteries but by the enlargement and widening of arteries in the brain. Continue reading...

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