Surgical stress response in patients with perioperative statin and/or beta-blocker treatment during colon cancer surgery

Background: Surgical stress during resection surgery for colon cancer has previously been shown to be associated with adverse postoperative outcomes. Statin and beta-blocker treatment have been shown to lower postoperative complications and mortality, and been hypothesized to reduce the surgical stress response, although this correlation has not been studied clinically. Aim: To investigate whether perioperative beta-blocker and/or statin treatment reduce the postoperative C-reactive protein (CRP) response. Material and methods: All patients who underwent right sided hemicolectomy or sigmoid resection for cancer at Örebro University Hospital during 2012-2017 were included in this study. Initially, any treatment with statins, beta-blockers or both were compared to those with no treatment. After initial analyses, four treatment groups were compared regarding postoperative CRP response, namely no treatment, statin, beta-blocker, and combination treatment. Comparisons regarding complications were also performed for the four groups. Results: A total of 260 patients were included in this study. The no treatment group had a lower peak postoperative CRP than the treatment group, when comparing any treatment versus no treatment. There were no significant differences in postoperative CRP within the four treatment groups. There was no significant difference in complication rate between any of the treatment groups when compared to no treatment. Conclusion: Treatment with statin or beta-blocker therapy does not reduce the postoperative CRP response. A combination of both treatments demonstrated a trend towards a reduction regarding postoperative CRP response compared with the two treatments individually assessed. Larger studies are needed to verify the results of this study