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    ΕΠΙΛΕΓΜΕΝΕΣ ΔΉΜΟΣΙΕΥΣΕΙΣ
Objective: To investigate the effect of systemic intraoperative administration of magnesium sulphate when used in the context of a multimodal pain management plan on analgesics consumption and pain scores, and perio-perative outcomes after lumbar laminectomy surgery.
Methods: Seventy-four patients undergoing lumbar laminectomy were enrolled in this randomized, double-blind, placebo-controlled trial. Participants were randomly allocated to receive magnesium (20 mg/kg iv given as bolus before anesthesia induction followed by 20 mg/kg/h civ until surgery completion) or saline. Hemodynamic variables and desflurane consumption were noted at predefined time- intervals intraoperatively. Primary outcome was postoperative cumulative analgesic consumption over 24 h, while pain intensity (assessed by Visual Analogue Scale [VAS] at 1, 2, 4, 6 and 24 h), intraoperative hemodynamics and opioid requirements, recovery profile, time to first analgesic request, and adverse effects constituted secondary end-points.
Results: Demographics, surgery duration, desflurane requirements, and recovery profile were comparable between groups. Magnesium attenuated hemodynamic response during incision and emergence from anesthesia. Postoperative analgesics consumption in morphine iv equivalents (mean difference −9.24 [95 %CI −13.31,−5.17] mg; p = 0.001) and VAS scores at all-time points of assessment were lower in magnesium group; this effect peaked at 4 h (mean difference −2.15 [95 %CI −3.21,−1.09; p = 0.001]. Magnesium reduced intraoperative remifentanil consumption and prolonged the time-interval to first rescue analgesia (p < 0.01). No notable adverse effects were recorded.
Conclusion: It occurs that magnesium infusion during lumbar laminectomy surgery potentiates perioperative analgesia and reduces analgesic requirements up to 24 h postoperatively. No profound adverse effect on either intraoperative hemodynamics or any other clinically relevant endpoints becomes evident.
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         IMPLEMENTATION OF MAGNESIUM SULPHATE AS AN ADJUNCT TO MULTIMODAL ANALGESIC APPROACH FOR PERIOPERATIVE PAIN CONTROL IN LUMBAR LAMINECTOMY SURGERY: A RANDOMIZED PLACEBO-CONTROLLED CLINICAL TRIAL
Georgia Tsaousi*, Anastasia Nikopoulou, Ioakeim Pezikoglou, Vasiliki Birba, Vasilios Grosomanidis Department of Anesthesiology and ICU, Aristotle University Thessaloniki, Thessaloniki, Greece
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