European journal of anaesthesiology
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Randomized Controlled Trial
Preoperative versus intraoperative antiemetic strategies in patients undergoing laparoscopic cholecystectomy: A randomised double-blind study.
Previous studies have determined ondansetron's efficacy in preventing and treating postoperative nausea and vomiting (PONV). However, evidence regarding the timing of drug administration in relation to the surgical procedure remains vague. ⋯ Under the current study design, we found no difference in the incidence of PONV between the administration of ondansetron 1 h before induction of anaesthesia and the intraoperative administration of ondansetron 30 min before the end of surgery.
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Observational Study
Intra-operative electroencephalogram frontal alpha-band spectral analysis and postoperative delirium in cardiac surgery: A prospective cohort study.
Postoperative delirium (POD) remains a frequent complication after cardiac surgery, with pre-operative cognitive status being one of the main predisposing factors. However, performing complete pre-operative neuropsychological testing is challenging. The magnitude of frontal electroencephalographic (EEG) α oscillations during general anaesthesia has been related to pre-operative cognition and could constitute a functional marker for brain vulnerability. ⋯ A lower intra-operative frontal α-band power is associated with a higher incidence of POD after cardiac surgery. Intra-operative measures of α power could constitute a means of identifying patients at risk of this complication.