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Early Fever in Allogeneic Stem Cell Transplantation: Are Presepsin and YKL-40 Valuable Diagnostic Tools?

Overview
Journal J Clin Med
Specialty General Medicine
Date 2024 Oct 16
PMID 39408051
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Abstract

: Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a lifesaving treatment but carries a high infection risk. Diagnosing infections remains challenging due to the limited accuracy of standard biomarkers. : This single-center study aimed to evaluate presepsin (PSP) and YKL-40 as infection biomarkers in febrile patients during the allo-HSCT pre-engraftment phase. Biomarker levels were prospectively measured in 61 febrile episodes from 54 allo-HSCT patients at admission, representing baseline levels, and then at Day 1, 3, 5, and 7 following fever onset. The diagnostic value was compared to that of procalcitonin (PCT). : PSP showed fair diagnostic value on Day 1 (AUC 0.656; 95% CI: 0.510-0.802) and Day 3 (AUC 0.698; 95% CI: 0.559-0.837). YKL-40 did not provide any significant diagnostic value across measured time points. PCT outperformed PSP and YKL-40, particularly on Day 3 (AUC 0.712; 95% CI: 0.572-0.852). When combining biomarkers, the best model for predicting infection used PSP > 3.144 ng/mL and PCT > 0.28 μg/L on Day 3, resulting in R of about 31% ( < 0.001). : Neither test showed sufficient discriminative power for early infection to recommend their use as individual diagnostic tools in clinical practice.

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