Diagnostic accuracy of presepsin (sCD14-ST) as a biomarker of infection and sepsis in the emergency department

• Published in: Clinica chimica acta 2017-01, Vol.464, p.6-11
• Main Authors: de Guadiana Romualdo, Luis García, Torrella, Patricia Esteban, Acebes, Sergio Rebollo, Otón, María Dolores Albaladejo, Sánchez, Roberto Jiménez, Holgado, Ana Hernando, Santos, Enrique Jiménez, Freire, Alejandro Ortín
• Format: Article
• Language: English
• Subjects: Adult; Aged; Biomarkers - blood; C-reactive protein; Diagnosis, Differential; Diagnostic accuracy; Emergency Department; Emergency Service, Hospital; Female; Humans; Infection; Lipopolysaccharide Receptors - blood; Male; Middle Aged; Peptide Fragments - blood; Presepsin; Procalcitonin; Sensitivity and Specificity; Sepsis; Sepsis - blood; Sepsis - complications; Sepsis - diagnosis
• ISSN: 0009-8981; 1873-3492
• DOI: 10.1016/j.cca.2016.11.003

Presepsin is a promising biomarker for the diagnosis and prognosis of sepsis. However, results reported about its value to diagnose sepsis in an emergency department (ED) are controversial, probably due to differences in the design of the studies. We have evaluated the diagnostic accuracy of presepsin for infection and sepsis, compared with procalcitonin (PCT) and C-reactive protein (CRP), in patients presenting to the emergency department (ED) with suspected infection. 223 patients with suspected infection were enrolled for the study. Blood samples were collected on admission for measurement of biomarkers. Definitive diagnosis was obtained afterwards by analysis of digital medical records. Receiver operating characteristic (ROC) curve analysis was conducted to determine the diagnostic accuracy. Infection was confirmed in 200 patients, including 130 with non-complicated infection and 70 with sepsis. Median CRP, PCT and presepsin levels were significantly higher in patients with infection and sepsis. PCT was the biomarker with the highest performance for infection (ROC AUC: 0.910); for sepsis, PCT (ROC AUC: 0.815) and presepsin (ROC AUC: 0.775) shown a similar performance. Although presepsin is a valuable biomarker for diagnosis of infection and sepsis, its diagnostic accuracy in our study does not improve that of PCT. Its introduction in clinical practice is not justified. •We have assessed the diagnostic accuracy of presepsin for infection and sepsis.•PCT was the biomarker with higher performance for infection.•PCT and presepsin shown a similar performance for sepsis.•Introduction of presepsin for diagnosis of infection/sepsis is not justified.