Edinburgh Study Links Lacunar Stroke to 4-Fold Higher Risk From Enlarged Brain Arteries
Updated
Updated · ScienceDaily · Jul 3
Edinburgh Study Links Lacunar Stroke to 4-Fold Higher Risk From Enlarged Brain Arteries
3 articles · Updated · ScienceDaily · Jul 3
Summary
Researchers studying 229 mild-stroke patients found lacunar ischemic stroke tracked most strongly with enlarged, widened brain arteries, not fatty plaque narrowing in larger vessels.
Patients with enlarged arteries were more than four times as likely to have had a lacunar stroke, while large-artery narrowing showed no link to lacunar stroke, small-vessel disease, or new brain damage.
More than 1 in 4 participants developed new silent strokes within a year despite standard preventive treatment, helping explain why aspirin and other antiplatelet drugs often fall short.
The findings shift attention toward therapies that protect the brain’s smallest vessels, including the LACI-3 trial testing cilostazol and isosorbide mononitrate.
Lacunar stroke is a major driver of disability, cognitive decline, dementia and repeat stroke risk, so the Circulation study could reshape how a common stroke subtype is treated.
Beyond clogged arteries, what is causing the brain's smallest blood vessels to enlarge and trigger this common type of stroke?
If aspirin fails for a common stroke, could a common heart medication be the surprising new key to prevention?
Redefining Lacunar Stroke: Edinburgh’s Discovery, Arterial Widening, and the LACI-3 Phase 3 Trial for Cognitive Decline
Overview
A groundbreaking study led by the University of Edinburgh and international partners, published in Circulation, marks a pivotal moment in understanding lacunar stroke. This serious neurological event is caused by damage to the brain's smallest blood vessels, known as small vessel disease, and leads to severe health issues like disability, cognitive decline, dementia, and increased risk of further strokes. For years, the precise mechanisms behind lacunar stroke remained unclear, making it hard to develop effective treatments. The new research sheds light on these elusive causes, laying the foundation for better therapies and improved outcomes for patients.