Journal of clinical anesthesia
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Observational Study
Lower alpha frequency of intraoperative frontal EEG is associated with postoperative delirium: A secondary propensity-matched analysis.
Postoperative delirium (POD) is a serious complication of surgery, especially in the elderly patient population. It has been proposed that decreasing the amount of anesthetics by titrating to an EEG index will lower POD rate, but clear evidence is missing. A strong age-dependent negative correlation has been reported between the peak oscillatory frequency of alpha waves and end-tidal anesthetic concentration, with older patients generating slower alpha frequencies. We hypothesized, that slower alpha oscillations are associated with a higher rate of POD. ⋯ Intraoperative slower frontal peak alpha frequency is independently associated with POD after cardiac surgery and may be a simple intraoperative neurophysiological marker of a vulnerable brain for POD. Further studies are needed to investigate if there is a causal link between alpha frequency and POD.
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Randomized Controlled Trial
Effect of using hypotension prediction index versus conventional goal-directed haemodynamic management to reduce intraoperative hypotension in non-cardiac surgery: A randomised controlled trial.
It remains unclear whether it is the hypotension prediction index itself or goal-directed haemodynamic therapy that mitigates intraoperative hypotension. ⋯ The current randomised controlled trial results suggest that using the hypotension prediction index independently lowered the cumulative amount of intraoperative hypotension during major non-cardiac surgery.
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Review Meta Analysis
High dose glucocorticoids for treatment of postoperative pain: A systematic review of the literature and meta-analysis.
Glucocorticoids as a component of multimodal analgesia have been studied for many years and their post-operative analgesic effects appear to be dose-dependent. We conducted a systematic review of randomized controlled trials (RCTs) to evaluate the evidence of peri-operative high dose corticosteroid therapy in comparison to placebo (placebo drug) or control group (no treatment) for improving the quality of post-operative analgesia as indicated by a reduction of 10 mm in 100 mm Visual Analogue Scale (VAS) or reduction of 1 point in a 0-10 point VAS scale, or a reduction of 1 point in an 11-point Numerical Rating Scale (NRS) score, or reduction of rescue opioid analgesia, in patients undergoing all types of surgery. ⋯ CRD42020137119.
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Meta Analysis
Dexmedetomidine improves pulmonary outcomes in thoracic surgery under one-lung ventilation: A meta-analysis.
Dexmedetomidine improves intrapulmonary shunt in thoracic surgery and minimizes inflammatory response during one-lung ventilation (OLV). However, it is unclear whether such benefits translate into less postoperative pulmonary complications (PPCs). Our objective was to determine the impact of dexmedetomidine on the incidence of PPCs after thoracic surgery. ⋯ Dexmedetomidine administration during thoracic surgery may potentially reduce the risk of postoperative atelectasis and hypoxemia. However, current evidence is insufficient to demonstrate an effect on pneumonia or ARDS.