Abstract:
Objective To explore the role of inflammatory biomarkers in patients with pneumonia induced sepsis by continuously detecting the levels of inflammatory biomarkers combined with sequential organ failure assessment (SOFA) score.
Methods Blood samples and clinical information from 143 patients with pneumonia induced sepsis in Zhongshan University, Fudan University from July 2017 to November 2019 were enrolled. According to the clinical outcomes of 28 days after admission, patients were divided into survival group and dead group. The serum white blood cell count (WBC), absolute value of lymphocyte, and levels of high-sensitivity C-reactive protein, procalcitonin, and cytokines on the first and third day after admission were collected continuously, and the SOFA and acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) scores of the included patients were calculated.
Results The SOFA score (P=0.003) and APACHEⅡscore (P < 0.001) in the dead group were significantly higher than those in the survival group. The rates of patients using assisted ventilation (P < 0.001) and vasoactive drugs (P < 0.001) in the dead group were higher than those in the survival group. The differences of serum levels of interleukin (IL)-2R, IL-8, and IL-10 between the two groups had statistical significances at different time points after admission. Multivariate logistic regression analysis results showed that IL-2R on the first day after admission (OR=1.001, 95% CI 1.000-1.001), WBC (OR=1.246, 95% CI 1.062-1.462), and IL-10 (OR=1.188, 95% CI 1.011-1.396) the third day after admission, and the 3-day change rate of IL-6 (OR=2.488, 95% CI 1.065-5.809) were associated with the prognosis of patients(P < 0.05). The AUC of SOFA combined with IL-2R (day 1), SOFA combined with WBC and IL-10 (day 3), and SOFA combined with IL-6 (3-day change rate) for predicting 28-day prognosis of sepsis patients were 0.698 (95% CI 0.601-0.795, P=0.001), 0.854 (95% CI 0.789-0.919, P < 0.001), and 0.795 (95% CI 0.708-0.882, P < 0.001), respectively.
Conclusions Dynamic monitoring of IL-2R, WBC, IL-6, and IL-10 can help to predict the clinical outcome of patients with pneumonia induced sepsis. SOFA score combined with IL-2R (day 1), WBC + IL-10 (day 3), and IL-6 (3-day change rate) can increase the value of serum markers for predicting prognosis of the patients to a certain extent.