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High postoperative blood levels of macrophage migration inhibitory factor are associated with less organ dysfunction in patients after cardiac surgery
Critical Care volume 16, Article number: P471 (2012)
Macrophage migration inhibitory factor (MIF) is a structurally unique inflammatory cytokine  that exerts protective effects during ischemia and reperfusion . We hypothesized that elevated MIF levels in the early postoperative time course might be inversely associated with postoperative organ dysfunction as assessed by SAPS II and SOFA score in patients after cardiac surgery.
Fifty-two cardiac surgical patients (mean age (± SD) 67 ± 10 years; EuroSCORE: 7 (2 to 11)) were enrolled in this monocenter, prospective, observational study. Serum levels of MIF and clinical data were obtained after induction of anesthesia, at admission to the ICU, 4 hours thereafter and at the first and second postoperative day (POD). Patient outcome was assessed using the SAPS II at POD1 and SOFA score for the first 3 days of the eventual ICU stay.
MIF_AUC, the computed area under the curve of MIF serum levels from admission until POD1, was inversely correlated with SAPS II and SOFA score on POD1 (Table 1). MIF at admission (r = 0.296; P = 0.041) and MIF at 4 hours (r = 0.367; P = 0.012) correlated inversely with the paO2/FiO2 ratios at POD1. Moreover, postoperative MIF values were inversely correlated with SAPS II (r = 0.528; P = 0.044) and SOFA scores during the early postoperative stay (Table 1). In addition, MIF values on POD1 were related to the calculated Cardiac Power Index (r = 0.420; P = 0.009).
Elevated postoperative MIF levels are inversely correlated with organ dysfunction in patients after cardiac surgery.
Calandra T, et al: Macrophage migration inhibitory factor: a regulator of innate immunity. Nat Rev Immunol. 2003, 3: 791-800. 10.1038/nri1200.
Koga K, et al: Macrophage migration inhibitory factor provides cardioprotection during ischemia/reperfusion by reducing oxidative stress. Antioxid Redox Signal. 2011, 14: 1191-1202. 10.1089/ars.2010.3163.
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Stoppe, C., Grieb, G., Simons, D. et al. High postoperative blood levels of macrophage migration inhibitory factor are associated with less organ dysfunction in patients after cardiac surgery. Crit Care 16, P471 (2012). https://doi.org/10.1186/cc11078
- Organ Dysfunction
- Migration Inhibitory Factor
- Power Index
- Sofa Score
- Postoperative Stay