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  • Title: Prognostic significance of the angiopoietin-2/angiopoietin-1 and angiopoietin-1/Tie-2 ratios for early sepsis in an emergency department.
    Author: Fang Y, Li C, Shao R, Yu H, Zhang Q, Zhao L.
    Journal: Crit Care; 2015 Oct 14; 19():367. PubMed ID: 26463042.
    Abstract:
    INTRODUCTION: This study was performed to assess the early diagnostic, risk stratification, and prognostic value of the angiopoietin-2/angiopoietin-1 ratio (Ang-2/Ang-1) and angiopoietin-1/tyrosine kinase with immunoglobulin-like loop epidermal growth factor homology domain 2 ratio (Ang-1/Tie-2) and to compare these factors with procalcitonin (PCT) and the Mortality in Emergency Department Sepsis (MEDS) score in patients with early sepsis in the emergency department (ED). METHODS: Consecutive patients with sepsis (n = 440) were enrolled in this study. They fulfilled the systemic inflammatory response syndrome (SIRS) criteria and were admitted to the ED of Beijing Chao-yang Hospital between August 2014 and February 2015. The control group consisted of 55 healthy blood donors. The patients were categorized into four groups: SIRS, sepsis, severe sepsis, and septic shock. Serum Ang-1, Ang-2, Tie-2, and PCT were measured, and the MEDS score was calculated upon ED arrival. The prognostic values of Ang-2/Ang-1, Ang-1/Tie-2, Ang-1, Ang-2, and Tie-2 were compared with the PCT and MEDS scores. All patients were followed for 28 days. RESULTS: Upon admission, the median levels of the serum Ang-2 level and Ang-2/Ang-1 ratio increased and the serum Ang-1 levels and Ang-1/Tie-2 ratios decreased with the severity of sepsis. The areas under the receiver operating characteristic curves of the Ang-2/Ang-1 and Ang-1/Tie-2 ratios were greater than those of the Ang-1, Ang-2, and PCT levels and MEDS scores in the diagnosis and prediction of 28-day mortality due to sepsis. Ang-2/Ang-1 was significantly higher and Ang-1/Tie-2 was significantly lower in nonsurvivors than in survivors at the 28-day follow-up examination. Ang-2/Ang-1, Ang-1/Tie-2, and MEDS score were found to be independent predictors of 28-day mortality in patients with sepsis. The levels of serum Ang-1, Ang-2, and Tie-2 were positively correlated with each other. The ratios of Ang-2/Ang-1 and Ang-1/Tie-2 were positively and negatively correlated, respectively, with the MEDS score in every septic group. CONCLUSIONS: The Ang-2/Ang-1 and Ang-1/Tie-2 ratios are valuable for risk stratification in patients with sepsis and are associated with the poor clinical outcome of early sepsis in the ED.
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