IL6 and cardiac arrest: Secondary outcomes showed significant reductions in angina (RR = 0.72; 95%CI: [0.58,0.90], P = 0.004), revascularization (RR = 0.85; 95%CI: [0.73,0.98], P = 0.03), IL-6 (SMD = − 0.82;95༅CI: [-1.62,-0.03], P = 0.02), and neutrophil count, but no effect on (cardiac arrest)CA, all-cause mortality, incidence of gastrointestinal adverse effect and high-sensitivity c-reactive protein(hs-CRP).