• Psychosomatics · May 2009

    Randomized Controlled Trial Comparative Study

    Dexmedetomidine and the reduction of postoperative delirium after cardiac surgery.

    • José R Maldonado, Ashley Wysong, Pieter J A van der Starre, Thaddeus Block, Craig Miller, and Bruce A Reitz.
    • Dept. of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Rd., Suite 2317, Stanford, CA 94305-5546, USA. jrm@stanford.edu
    • Psychosomatics. 2009 May 1;50(3):206-17.

    BackgroundDelirium is a neurobehavioral syndrome caused by the transient disruption of normal neuronal activity secondary to systemic disturbances.ObjectiveThe authors investigated the effects of postoperative sedation on the development of delirium in patients undergoing cardiac-valve procedures.MethodsPatients underwent elective cardiac surgery with a standardized intraoperative anesthesia protocol, followed by random assignment to one of three postoperative sedation protocols: dexmedetomidine, propofol, or midazolam.ResultsThe incidence of delirium for patients receiving dexmedetomidine was 3%, for those receiving propofol was 50%, and for patients receiving midazolam, 50%. Patients who developed postoperative delirium experienced significantly longer intensive-care stays and longer total hospitalization.ConclusionThe findings of this open-label, randomized clinical investigation suggest that postoperative sedation with dexmedetomidine was associated with significantly lower rates of postoperative delirium and lower care costs.

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