• Clin Interv Aging · Jan 2019

    Randomized Controlled Trial Multicenter Study

    Effect of perioperative administration of dexmedetomidine on delirium after cardiac surgery in elderly patients: a double-blinded, multi-center, randomized study.

    • Cunxian Shi, Jin Jin, Leyan Qiao, Tao Li, Jiahai Ma, and Zhikun Ma.
    • Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China, scx147852@163.com.
    • Clin Interv Aging. 2019 Jan 1; 14: 571-575.

    ObjectivePostoperative delirium (POD) is a serious complication in elderly patients undergoing cardiac surgery. This study was aimed at investigating the effect of perioperative administration of dexmedetomidine for general anesthesia maintenance on occurrence and duration of POD in elderly patients after cardiac surgery.MethodsOne hundred and sixty-four patients were enrolled after cardiac surgery between June 2009 and December 2016. Patients were assigned by a computer-generated randomization sequence in a 1:1 ratio to receive dexmedetomidine general anesthesia maintenance or propofol general anesthesia maintenance. POD was assessed every day with confusion assessment method for intensive care units (ICU) during the first 5 postoperative days.ResultsThere was no significance in incidence of POD between the dexmedetomidine group and the propofol group (P=0.0758). In patients treated with dexmedetomidine, the median onset time of delirium was delayed (second day vs first day) and the duration of delirium reduced (2 days vs 3 days) when compared with propofol-treated patients. The dexmedetomidine-treated patients also displayed a lower VAS score and less opiate analgesic consumption. No difference was observed in respect to other postoperative outcomes.ConclusionFor elderly patients, perioperative administration of dexmedetomidine reduced incidence, delayed onset and shortened duration of POD after cardiac surgery.

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