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A randomised controlled trial of dexmedetomidine for delirium in adults undergoing heart valve surgery
Ist Teil von
Anaesthesia, 2023-05, Vol.78 (5), p.571-576
Ort / Verlag
England: Blackwell Publishing Ltd
Erscheinungsjahr
2023
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
Summary
Dexmedetomidine might reduce delirium after cardiac surgery. We allocated 326 participants to an infusion of dexmedetomidine at a rate of 0.6 μg kg−1 for 10 min and then at 0.4 μg.kg−1.h−1 until the end of surgery; 326 control participants received comparable volumes of saline. We detected delirium in 98/652 (15%) participants during the first seven postoperative days: 47/326 after dexmedetomidine vs. 51/326 after placebo, p = 0.62, adjusted relative risk (95%CI) 0.86 (0.56–1.33), p = 0.51. Postoperative renal impairment (Kidney Disease Improving Global Outcomes stages 1, 2 and 3) was detected in 46, 9 and 2 participants after dexmedetomidine and 25, 7 and 4 control participants, p = 0.040. Intra‐operative dexmedetomidine infusion did not reduce the incidence of delirium after cardiac valve surgery but might impair renal function.