Acute Loss in Cognitive Function Follows a Stroke

People who have had a stroke have lower cognitive ability than age-matched controls. But people with lower cognitive ability are predisposed to stroke. This paper [1] summarises a prospective study of no less than 23,000 volunteers. Lower cognition was indeed associated with increased risk of stroke, but the stroke itself occasions a further substantial drop – 1 point on a 6 point scale. Cognitive development continues to fall after the initial insult – perhaps through the “connectome,” as discussed in a previous blog.

— Richard Lilford, CLAHRC WM Director

Reference:

  1. Gorelick PB, Nyenhuis D. Stroke and Cognitive Decline. JAMA. 2015;314:29-30.
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