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- W1977391800 abstract "Objectives: Systemic inflammatory response variability displays differing degrees of organ damage and differing outcomes of sepsis. C1-esterase inhibitor, an endogenous acute-phase protein, regulates various inflammatory and anti-inflammatory pathways, including the kallikrein-kinin system and leukocyte activity. This study assesses the influence of high-dose C1-esterase inhibitor administration on systemic inflammatory response and survival in patients with sepsis. Design: Open-label randomized controlled study. Setting: Surgical and medical intensive care units of nine university and city hospitals. Patients: Sixty-one patients with sepsis. Interventions: Patients were randomized to receive either 12,000 U of C1-esterase inhibitor infusions in addition to conventional treatment or conventional treatment only (n = 41 C1-esterase inhibitor, 20 controls). Blood samples for measurement of C1-esterase inhibitor, complement components C3 and C4, and C-reactive protein concentrations were drawn on days 1, 3, 5, 7, 10, and 28. Measurements and Main Results: Quartile analysis of C1-esterase inhibitor activity in sepsis subjects revealed that the lowest quartile subgroup had similar activity levels (0.7–1.2 U/L), when compared to healthy volunteers (p > .05). These normal-level C1-esterase inhibitor sepsis patients nevertheless displayed increased C-reactive protein (p = .04) production and higher likelihoods of a more severe sepsis (p = .001). Overall, infusion of C1-esterase inhibitor increased C1-esterase inhibitor (p < .005 vs. control on days 2, 3, and 5) functional activity, resulted in higher C3 levels (p < .05 vs. control on days 2 and 3), followed by decreased C-reactive protein (p < .05 vs. control on days 3 and 10). Simultaneously, C1-esterase inhibitor infusion in sepsis patients was associated with reduced all-cause mortality (12% vs. 45% in control, p = .008) as well as sepsis-related mortality (8% vs. 45% in control, p = .001) assessed over 28 days. The highest absolute reduction risk of 70% was achieved in sepsis patients with Simplified Acute Physiology Score II scores >27. Conclusion: In the present study, patients in the lowest quartile of C1-esterase inhibitor activity in combination with high C-reactive protein demonstrated a higher risk of developing severe sepsis. In general, high-dose C1-esterase inhibitor infusion down-regulated the systemic inflammatory response and was associated with improved survival rates in sepsis patients, which could have important treatment and survival implications for individuals with C1-esterase inhibitor functional deficiency." @default.
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- W1977391800 date "2012-03-01" @default.
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- W1977391800 title "C1-esterase inhibitor infusion increases survival rates for patients with sepsis*" @default.
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- W1977391800 doi "https://doi.org/10.1097/ccm.0b013e318236edb8" @default.
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