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ARTICLE |

Sepsis Score and Acute-Phase Protein Response as Predictors of Outcome in Septic Surgical Patients

Lorenzo Dominioni, MD; Renzo Dionigi, MD, FACS; Marco Zanello, MD; Roberto Monico, MD; Riccarda Cremaschi, MD; Roberto Dionigi, MD; Andrea Ballabio, MD; Margherita Massa; Mario Comelli; Paolo Dal Ri, MD; Paolo Pisati
Arch Surg. 1987;122(2):141-146. doi:10.1001/archsurg.1987.01400140023001.
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• In a series of 135 patients with severe surgical infections, we determined the sepsis score and the plasma level of the acute-phase proteins α-1-acid glycoprotein, α1-antitrypsin, complement factor B, and C3. The initial sepsis score was a strong determinant of survival: in survivors it was significantly lower than in nonsurvivors. Only 8% of patients with a sepsis score above 20 survived. At the onset of severe sepsis, the plasma levels of all four acute-phase proteins were significantly lower in nonsurvivors. A significant elevation of C3a levels in the plasma of both surviving and nonsurviving patients indicated marked consumption of complement components in all patients with severe sepsis. A linear equation was developed to predict survival: sepsis index of survival (SIS) % = 121 + 0.26 (complement factor B) + 0.36 (α-1-acid glycoprotein) – 6 (sepsis score). Based on our analysis, at the onset of severe sepsis, an SIS of 50% or more can correctly predict 88% of survivors and an SIS less than 50% can correctly predict 86% of nonsurvivors several days in advance of clinical outcome.

(Arch Surg 1987;122:141-146)

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