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Trial Seeks Molecular Basis of Post-Operative Delirium in Elderly

A new clinical trial hopes to unravel the genetic and molecular basis for delirium, a common complication afflicting elderly patients after major surgery. Delirium, which can prolong the recovery of elderly surgical patients, is a mental state characterized by impaired cognitive function, fluctuating levels of consciousness, disturbed sleep-wake cycles and agitation. Although difficult to measure, the incidence of delirium has been reported to be as high as 60 percent, with the elderly at the highest risk, the researchers said.