Protein C zymogen in adults with severe sepsis or septic shock

RESUMEN

INTRODUCTION: Activated protein C is associated with a risk of bleeding and its effects on survival in septic shock patients are questionable. Protein C zymogen has no risk of bleeding and improves the outcome of patients with septic shock. We hereby describe the largest published case series of adult patients receiving protein C zymogen. Design, setting and participants: A prospective study on 23 adult patients with severe sepsisor septic shock, two or more organ failures and at high risk for bleeding, treated with protein C zymogen (50 IU/kg bolus followed by continuous infusion of 3 IU/kg/h for 72 h).RESULTS: The Z-test evidenced a significant reduction between the expected mortality (53%)and the observed mortality 30% (Z value = 1.99, p = 0.046) in our sample population. Protein Clevels increased from 34 ± 18% to 66 ± 22% at 6 h after PC bolus (p < 0.001), and kept on increasing during 72 h of administration (p < 0.001 to baseline). Sequential Organ Failure Assessment(SOFA), score of organ dysfunction, decreased from baseline to 7 days after administration of protein C from 14 ± 2 to 7 ± 4 (p < 0.001). No adverse event drug related was noted. CONCLUSION: Protein C zymogen administration is safe and its use in septic patients should be investigated through a randomized controlled trial