• Francisco Carlos Bonofiglio, Ernesto P Molmenti, and Eduardo de Santibañes.
• Department of Anaesthesiology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
• HPB (Oxford). 2011 Oct 1;13(10):706-11.

IntroductionPrevious studies have shown that interleukin-6 (IL-6) levels correlated with mortality in critically ill patients.GoalTo determine the effect of ketamine on IL-6 levels in liver resections patients with a temporary porto-arterial occlusion (Pringle manoeuvre).Materials And MethodsControlled, prospective, randomized, double-blinded study. One group (n = 21) received ketamine whereas the other group (n = 17) received placebo. IL-6 levels were obtained at baseline, 4, 12, 24 h, 3 and 5 days.ResultsThere were no significant differences in IL-6 levels between the groups (basal P = 089, 4 hP = 0.83, 12 h P = 0.39, 24 h, P = 0.55, 3 days P = 0.80 and 5 days P = 0.45). Both groups had elevated IL-6 levels that became almost undetectable by day 5. There was no major morbidity and no mortality in either group.Conclusions  Ketamine does not seem to have an effect on plasma levels of IL-6. This could be interpreted as a potential finding associated with outcome as we did not encounter any deaths or major complications. Further studies will likely be needed to determine the range of IL-6 levels associated with survival and mortality, and whether it could be a predictor of survival.© 2011 International Hepato-Pancreato-Biliary Association.

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