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Comparison among presepsin, procalcitonin, and C-reactive protein in predicting blood culture positivity and pathogen in sepsis patients

降钙素原 败血症 内科学 血培养 胃肠病学 医学 接收机工作特性 C反应蛋白 逻辑回归 菌血症 曲线下面积 病菌 免疫学 微生物学 生物 抗生素 炎症
作者
Hongli Xiao,Hanyu Zhang,Guoxing Wang,Yan Wang,Zhimin Tan,Xuelian Sun,Jie Zhou,Meili Duan,Deyuan Zhi,Chenchen Hang,Guoqiang Zhang,Yan Li,Caijun Wu,Haiyan Zhang,Miaorong Xie,Chunsheng Li
出处
期刊:Shock [Lippincott Williams & Wilkins]
被引量:6
标识
DOI:10.1097/shk.0000000000002243
摘要

Abstract Background Sepsis is caused by the invasion of the bloodstream by microorganisms from local sites of infection, leading to high mortality. This study aimed to compare the predictive ability of the biomarkers presepsin, procalcitonin (PCT) and C-reactive protein (CRP) for bacteraemia. Methods In this retrospective, multicentre study, a dataset of patients with sepsis who were prospectively enrolled between November 2017 and June 2021 was analysed. The performances of the biomarkers for predicting positive blood cultures and infection with specific pathogens were assessed by the areas under the receiver operating characteristic curves (AUCs). The independent effects of the pathogen and foci of infection on presepsin and PCT levels were assessed by linear logistic regression models. Results A total of 577 patients with 170 (29.5%) positive blood cultures were enrolled. The AUC achieved using PCT levels (0.856) was significantly higher than that achieved using presepsin (0.786, p = 0.0200) and CRP (0.550, p < 0.0001) levels in predicting bacteraemia. The combined analysis of PCT and presepsin levels led to a significantly higher AUC than the analysis of PCT levels alone for predicting blood culture positivity (0.877 vs. 0.856, p = 0.0344) and gram-negative bacteraemia (0.900 vs. 0.875, p = 0.0216). In a linear regression model, the elevated concentrations of presepsin and PCT were both independently related to E. coli , Klebsiella spp., Pseudomonas spp., and Streptococcus spp. infections and Sequential Organ Failure Assessment (SOFA) score. Presepsin levels were also associated with Acinetobacter spp. and abdominal infection, and PCT levels were positively associated with other Enterobacteriaceae and negatively associated with respiratory infection. Combined analysis of presepsin and PCT levels provided a high sensitivity and specificity in identifying Escherichia coli or Klebsiella spp infection. Conclusions Presepsin and PCT were promising markers for predicting bacteraemia and common pathogens at the time of sepsis onset with a synergistic effect.
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