• Anesteziol Reanimatol · Jul 2009

    Clinical Trial

    [The oxidant-antioxidant system and cognitive functions in patients undergoing elective abdominal operations under various general anesthesia modes].

    • I N Pasechnik, A A Meshcheriakov, S I Kontarev, and S P Lozenko.
    • Anesteziol Reanimatol. 2009 Jul 1 (4): 50-4.

    AbstractThe impact of various general anesthesia modes on the oxidant-antioxidant system (OAS) and cognitive function in the perioperative period was studied in 88 patients (4 groups, each comprising 22 patients according to the mode of general anesthesia who had undergone elective surgery for chronic calculous cholecystitis (out of an exacerbation) and inguinal, umbilical, and postoperative hernias. Oxidative protein and lipid damages with the lower activity of antioxidant defense enzymes were found in the surgical patients exposed to various modes of general anesthesia. The findings suggest that the pattern of changes in OAS parameters depends on the method of anesthetic maintenance. Oxidative protein modification is much more frequently recorded that lipid peroxidation. Propofol-based balanced anesthesia has a minimal impact on OAS parameters as compared to neuroleptic analgesia, ataralgesia, and sevoflurane anesthesia. After elective abdominal surgery, decreased free radical oxidation under propofol-anesthesia is concurrent with lower postoperative cognitive dysfunction.

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