Once again these writers either don't know what they are writing about or the source doesn't. I would never do this surgery due to the risk of throwing clots into the brain during the procedure.
Elderly people can benefit from surgery that lowers the risk of stroke
A new study from the John P Robarts Research Institute in Ontario,
Canada, now reveals that older people actually do benefit from surgery
aimed at preventing stroke. The operation cleans out blockages in the
carotid artery serving the brain. Left untreated, the artery might
become completely blocked by a blood clot, resulting in a stroke.
Wrong, wrong, wrong. If the carotid artery becomes blocked the Circle of Willis allows enough blood to supply the brain. The problem is if the blockage tears, clots and then throws that clot into the brain arteries.
The surgery is useful, just not for the explanation given. My dad had it.
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