The 103 participants (46 percent) in whom delirium developed postoperatively had lower preoperative mean MMSE scores than those in whom delirium did not develop. Patients with delirium had a larger drop in cognitive function two days after surgery than did those without delirium, and they had significantly lower postoperative cognitive function than those without delirium, both at one month and at one year after surgery. “Delirium is associated with a significant decline in cognitive ability during the first year after cardiac surgery, with a trajectory characterized by an initial decline and prolonged impairment,” the researchers
Read more about causes and treatment of delirium in the Textbook of Geriatric Neuropsychiatry, Third Edition, available from American Psychiatric Publishing, here.
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