Abstract:Objective To investigate the value of plasma soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) and Presepsin in the diagnosis and prognostic assessment for children with sepsis.Methods Totally 103 children with sepsis admitted Qinghai University Affiliated Hospital from January 2019 to December 2020 were selected as the sepsis group, were divided into general sepsis group (n = 48), severe sepsis group (n = 34), and septic shock group (n = 21), according to the severity of the disease. 50 children with common infections admitted during the same period were selected as the infected group, and 40 healthy children examined during the same period were selected as the control group. Plasma sTREM-1 and Presepsin levels were compared among each group. Spearman correlation was used to analyze the correlation between plasma levels of sTREM-1 and Presepsin and sepsis-related organ failure assessment (SOFA) score in children with sepsis. The prognosis of children with sepsis after 28d was recorded. The multifactorial Logistic regression was used to analyze the factors influencing poor prognosis in children with sepsis, and the value of ROC curve was used to analyze the plasma sTREM-1 and Presepsin levels in the diagnosis and prognostic assessment of children with sepsis.Results Plasma sTREM-1 and Presepsin levels in sepsis group were higher than those in infection group and control group, and those in infection group were also higher than those in control group (P < 0.05). Plasma sTREM-1 and Presepsin levels in septic shock group were higher than those in general sepsis group and severe sepsis group, and those in severe sepsis group were also higher than those in general sepsis group (P < 0.05). Spearman correlation analysis showed that the levels of plasma sTREM-1 and Presepsin in sepsis group were positively correlated with SOFA score (rs = 0.434 and 0.412, P = 0.000 and 0.001). There were 28 deaths in children with sepsis. Pediatric intensive care unit time, mechanical ventilation time, sepsis-related organ failure assessment, sTREM-1, and Presepsin were independent risk factors for poor prognosis in children with sepsis (P < 0.05). ROC curve showed that the sensitivity of sTREM-1 + Presepsin in the diagnosis of children with sepsis was 82.52% (95% CI: 0.738, 0.893), and the specificity was 88.00% (95% CI: 0.757, 0.956); the sensitivity and specificity of sTREM-1 + Presepsin in evaluating the poor prognosis of children with sepsis were 81.09% (95% CI: 0.7133, 0.932) and 89.19% (95% CI: 0.734, 0.914).Conclusion Plasma sTREM-1 and Presepsin levels are significantly elevated in children with sepsis, and correlate with the development of sepsis, and can be used as indicators for diagnostic and prognostic assessment of children with sepsis, with higher value of joint forecast.